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cv Namespace Reference

cv Namespace Reference

DefaultDeviceInitializer. More...

Namespaces

namespace  anonymous_namespace{command_line_parser.cpp}
namespace  anonymous_namespace{matrix.cpp}

Data Structures

class  Affine3
 Affine transform. More...
class  Seq
class  SeqIterator
class  Allocator
struct  Ptr
 Template class for smart pointers with shared ownership. More...
class  _InputArray
 This is the proxy class for passing read-only input arrays into OpenCV functions. More...
class  _OutputArray
 This type is very similar to InputArray except that it is used for input/output and output function parameters. More...
class  MatAllocator
 Custom array allocator. More...
class  MatCommaInitializer_
 Comma-separated Matrix Initializer. More...
class  Mat
 n-dimensional dense array class More...
class  Mat_
 Template matrix class derived from Mat. More...
class  UMat
class  SparseMat
 The class SparseMat represents multi-dimensional sparse numerical arrays. More...
class  SparseMat_
 Template sparse n-dimensional array class derived from SparseMat. More...
class  MatConstIterator_
 Matrix read-only iterator. More...
class  MatIterator_
 Matrix read-write iterator. More...
class  SparseMatConstIterator
 Read-Only Sparse Matrix Iterator. More...
class  SparseMatIterator
 Read-write Sparse Matrix Iterator. More...
class  SparseMatConstIterator_
 Template Read-Only Sparse Matrix Iterator Class. More...
class  SparseMatIterator_
 Template Read-Write Sparse Matrix Iterator Class. More...
class  NAryMatIterator
 n-ary multi-dimensional array iterator. More...
class  MatExpr
 Matrix expression representation. More...
class  Matx
 Template class for small matrices whose type and size are known at compilation time. More...
class  DataType< Matx< _Tp, m, n > >
class  MatxCommaInitializer
 Comma-separated Matrix Initializer. More...
class  Vec
 Template class for short numerical vectors, a partial case of Matx. More...
class  DataType< Vec< _Tp, cn > >
class  VecCommaInitializer
 Comma-separated Vec Initializer. More...
class  MinProblemSolver
 Basic interface for all solvers. More...
class  DownhillSolver
 This class is used to perform the non-linear non-constrained minimization of a function,. More...
class  ConjGradSolver
 This class is used to perform the non-linear non-constrained minimization of a function with known gradient,. More...
class  FileStorage
 XML/YAML file storage class that encapsulates all the information necessary for writing or reading data to/from a file. More...
class  FileNode
 File Storage Node class. More...
class  FileNodeIterator
 used to iterate through sequences and mappings. More...
class  DataType
 Template "trait" class for OpenCV primitive data types. More...
class  DataDepth
 A helper class for cv::DataType. More...
class  Complex
 A complex number class. More...
class  Point_
 Template class for 2D points specified by its coordinates `x` and `y`. More...
class  Point3_
 Template class for 3D points specified by its coordinates `x`, `y` and `z`. More...
class  Size_
 Template class for specifying the size of an image or rectangle. More...
class  Rect_
 Template class for 2D rectangles. More...
class  RotatedRect
 The class represents rotated (i.e. More...
class  Range
 Template class specifying a continuous subsequence (slice) of a sequence. More...
class  Scalar_
 Template class for a 4-element vector derived from Vec. More...
class  KeyPoint
 Data structure for salient point detectors. More...
class  DMatch
 Class for matching keypoint descriptors. More...
class  TermCriteria
 The class defining termination criteria for iterative algorithms. More...
class  Moments
 struct returned by cv::moments More...
class  AutoBuffer
 Automatically Allocated Buffer Class. More...
class  ParallelLoopBody
 Base class for parallel data processors. More...
class  CommandLineParser
 Designed for command line parsing. More...
class  WImage
 Image class which provides a thin layer around an IplImage. More...
class  WImageC
 Image class when both the pixel type and number of channels are known at compile time. More...
class  WImageBuffer
 Image class which owns the data, so it can be allocated and is always freed. More...
class  WImageBufferC
 Like a WImageBuffer class but when the number of channels is known at compile time. More...
class  WImageView
 View into an image class which allows treating a subimage as an image or treating external data as an image. More...
class  Exception
 Class passed to an error. More...
class  PCA
 Principal Component Analysis. More...
class  LDA
 Linear Discriminant Analysis. More...
class  SVD
 Singular Value Decomposition. More...
class  RNG
 Random Number Generator. More...
class  RNG_MT19937
 Mersenne Twister random number generator. More...
class  Formatted
class  Formatter
class  Algorithm
 This is a base class for all more or less complex algorithms in OpenCV. More...
class  BaseRowFilter
class  BaseColumnFilter
class  BaseFilter
class  FilterEngine
class  GeneralizedHough
 finds arbitrary template in the grayscale image using Generalized Hough Transform More...
class  GeneralizedHoughBallard
 Ballard, D.H. More...
class  GeneralizedHoughGuil
 Guil, N., González-Linares, J.M. More...
class  LineSegmentDetector
 Line segment detector class. More...
class  LineIterator
 Line iterator. More...
class  SimilarRects
 class for grouping object candidates, detected by Cascade Classifier, HOG etc. More...
class  CascadeClassifier
 Cascade classifier class for object detection. More...
struct  DetectionROI
 struct for detection region of interest (ROI) More...

Typedefs

typedef v_reg< uchar, 16 > v_uint8x16
 Sixteen 8-bit unsigned integer values.
typedef v_reg< unsigned, 4 > v_uint32x4
 Four 32-bit unsigned integer values.
typedef v_reg< float, 4 > v_float32x4
 Four 32-bit floating point values (single precision)
typedef v_reg< double, 2 > v_float64x2
 Two 64-bit floating point values (double precision)
typedef v_reg< uint64, 2 > v_uint64x2
 Two 64-bit unsigned integer values.
typedef v_reg< int64, 2 > v_int64x2
 Two 64-bit signed integer values.
Shorter aliases for the most popular specializations of Vec<T,n>
typedef Vec< uchar, 2 > Vec2b
typedef Vec< uchar, 3 > Vec3b
typedef Vec< uchar, 4 > Vec4b
typedef Vec< short, 2 > Vec2s
typedef Vec< short, 3 > Vec3s
typedef Vec< short, 4 > Vec4s
typedef Vec< ushort, 2 > Vec2w
typedef Vec< ushort, 3 > Vec3w
typedef Vec< ushort, 4 > Vec4w
typedef Vec< int, 2 > Vec2i
typedef Vec< int, 3 > Vec3i
typedef Vec< int, 4 > Vec4i
typedef Vec< int, 6 > Vec6i
typedef Vec< int, 8 > Vec8i
typedef Vec< float, 2 > Vec2f
typedef Vec< float, 3 > Vec3f
typedef Vec< float, 4 > Vec4f
typedef Vec< float, 6 > Vec6f
typedef Vec< double, 2 > Vec2d
typedef Vec< double, 3 > Vec3d
typedef Vec< double, 4 > Vec4d
typedef Vec< double, 6 > Vec6d

Enumerations

enum  DecompTypes {
  DECOMP_LU = 0, DECOMP_SVD = 1, DECOMP_EIG = 2, DECOMP_CHOLESKY = 3,
  DECOMP_QR = 4, DECOMP_NORMAL = 16
}
 

matrix decomposition types

More...
enum  NormTypes { , NORM_RELATIVE = 8, NORM_MINMAX = 32 }
 

norm types

  • For one array:

    \[norm = \forkthree{\|\texttt{src1}\|_{L_{\infty}} = \max _I | \texttt{src1} (I)|}{if \(\texttt{normType} = \texttt{NORM_INF}\) } { \| \texttt{src1} \| _{L_1} = \sum _I | \texttt{src1} (I)|}{if \(\texttt{normType} = \texttt{NORM_L1}\) } { \| \texttt{src1} \| _{L_2} = \sqrt{\sum_I \texttt{src1}(I)^2} }{if \(\texttt{normType} = \texttt{NORM_L2}\) }\]

More...
enum  CmpTypes {
  CMP_EQ = 0, CMP_GT = 1, CMP_GE = 2, CMP_LT = 3,
  CMP_LE = 4, CMP_NE = 5
}
 

comparison types

More...
enum  GemmFlags { GEMM_1_T = 1, GEMM_2_T = 2, GEMM_3_T = 4 }
 

generalized matrix multiplication flags

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enum  DftFlags {
  DFT_INVERSE = 1, DFT_SCALE = 2, DFT_ROWS = 4, DFT_COMPLEX_OUTPUT = 16,
  DFT_REAL_OUTPUT = 32, DCT_INVERSE = DFT_INVERSE, DCT_ROWS = DFT_ROWS
}
enum  BorderTypes {
  BORDER_CONSTANT = 0, BORDER_REPLICATE = 1, BORDER_REFLECT = 2, BORDER_WRAP = 3,
  BORDER_REFLECT_101 = 4, BORDER_TRANSPARENT = 5, BORDER_REFLECT101 = BORDER_REFLECT_101, BORDER_DEFAULT = BORDER_REFLECT_101,
  BORDER_ISOLATED = 16
}
 

Various border types, image boundaries are denoted with `|`.

More...
enum  UMatUsageFlags
 

Usage flags for allocator.

More...
enum  SolveLPResult { SOLVELP_UNBOUNDED = -2, SOLVELP_UNFEASIBLE = -1, SOLVELP_SINGLE = 0, SOLVELP_MULTI = 1 }
 

return codes for cv::solveLP() function

More...
enum  SortFlags { SORT_EVERY_ROW = 0, SORT_EVERY_COLUMN = 1, SORT_ASCENDING = 0, SORT_DESCENDING = 16 }
enum  CovarFlags {
  COVAR_SCRAMBLED = 0, COVAR_NORMAL = 1, COVAR_USE_AVG = 2, COVAR_SCALE = 4,
  COVAR_ROWS = 8, COVAR_COLS = 16
}
 

Covariation flags.

More...
enum  KmeansFlags { KMEANS_RANDOM_CENTERS = 0, KMEANS_PP_CENTERS = 2, KMEANS_USE_INITIAL_LABELS = 1 }
 

k-Means flags

More...
enum  LineTypes { , LINE_4 = 4, LINE_8 = 8, LINE_AA = 16 }
 

type of line

More...
enum  HersheyFonts {
  FONT_HERSHEY_SIMPLEX = 0, FONT_HERSHEY_PLAIN = 1, FONT_HERSHEY_DUPLEX = 2, FONT_HERSHEY_COMPLEX = 3,
  FONT_HERSHEY_TRIPLEX = 4, FONT_HERSHEY_COMPLEX_SMALL = 5, FONT_HERSHEY_SCRIPT_SIMPLEX = 6, FONT_HERSHEY_SCRIPT_COMPLEX = 7,
  FONT_ITALIC = 16
}
 

Only a subset of Hershey fonts <http://sources.isc.org/utils/misc/hershey-font.txt> are supported.

More...
enum  ReduceTypes { REDUCE_SUM = 0, REDUCE_AVG = 1, REDUCE_MAX = 2, REDUCE_MIN = 3 }
enum  
 

type of the kernel

More...
enum  MorphTypes {
  MORPH_ERODE = 0, MORPH_DILATE = 1, MORPH_OPEN = 2, MORPH_CLOSE = 3,
  MORPH_GRADIENT = 4, MORPH_TOPHAT = 5, MORPH_BLACKHAT = 6, MORPH_HITMISS = 7
}
 

type of morphological operation

More...
enum  MorphShapes { MORPH_RECT = 0, MORPH_CROSS = 1, MORPH_ELLIPSE = 2 }
 

shape of the structuring element

More...
enum  InterpolationFlags {
  INTER_NEAREST = 0, INTER_LINEAR = 1, INTER_CUBIC = 2, INTER_AREA = 3,
  INTER_LANCZOS4 = 4, INTER_MAX = 7, WARP_FILL_OUTLIERS = 8, WARP_INVERSE_MAP = 16
}
 

interpolation algorithm

More...
enum  DistanceTypes {
  DIST_USER = -1, DIST_L1 = 1, DIST_L2 = 2, DIST_C = 3,
  DIST_L12 = 4, DIST_FAIR = 5, DIST_WELSCH = 6, DIST_HUBER = 7
}
 

Distance types for Distance Transform and M-estimators.

More...
enum  DistanceTransformMasks { DIST_MASK_3 = 3, DIST_MASK_5 = 5 }
 

Mask size for distance transform.

More...
enum  ThresholdTypes {
  THRESH_BINARY = 0, THRESH_BINARY_INV = 1, THRESH_TRUNC = 2, THRESH_TOZERO = 3,
  THRESH_TOZERO_INV = 4 , THRESH_OTSU = 8, THRESH_TRIANGLE = 16
}
 

type of the threshold operation ![threshold types](pics/threshold.png)

More...
enum  AdaptiveThresholdTypes { ADAPTIVE_THRESH_MEAN_C = 0, ADAPTIVE_THRESH_GAUSSIAN_C = 1 }
 

adaptive threshold algorithm see cv::adaptiveThreshold

More...
enum  UndistortTypes
 

cv::undistort mode

More...
enum  GrabCutClasses { GC_BGD = 0, GC_FGD = 1, GC_PR_BGD = 2, GC_PR_FGD = 3 }
 

class of the pixel in GrabCut algorithm

More...
enum  GrabCutModes { GC_INIT_WITH_RECT = 0, GC_INIT_WITH_MASK = 1, GC_EVAL = 2 }
 

GrabCut algorithm flags.

More...
enum  DistanceTransformLabelTypes { DIST_LABEL_CCOMP = 0, DIST_LABEL_PIXEL = 1 }
 

distanceTransform algorithm flags

More...
enum  FloodFillFlags { FLOODFILL_FIXED_RANGE = 1 << 16, FLOODFILL_MASK_ONLY = 1 << 17 }
 

floodfill algorithm flags

More...
enum  ConnectedComponentsTypes {
  CC_STAT_LEFT = 0, CC_STAT_TOP = 1, CC_STAT_WIDTH = 2, CC_STAT_HEIGHT = 3,
  CC_STAT_AREA = 4
}
 

connected components algorithm output formats

More...
enum  RetrievalModes { RETR_EXTERNAL = 0, RETR_LIST = 1, RETR_CCOMP = 2, RETR_TREE = 3 }
 

mode of the contour retrieval algorithm

More...
enum  ContourApproximationModes { CHAIN_APPROX_NONE = 1, CHAIN_APPROX_SIMPLE = 2, CHAIN_APPROX_TC89_L1 = 3, CHAIN_APPROX_TC89_KCOS = 4 }
 

the contour approximation algorithm

More...
enum  HoughModes { HOUGH_STANDARD = 0, HOUGH_PROBABILISTIC = 1, HOUGH_MULTI_SCALE = 2, HOUGH_GRADIENT = 3 }
 

Variants of a Hough transform.

More...
enum  LineSegmentDetectorModes { LSD_REFINE_NONE = 0, LSD_REFINE_STD = 1, LSD_REFINE_ADV = 2 }
 

Variants of Line Segment Detector.

More...
enum  HistCompMethods {
  HISTCMP_CORREL = 0, HISTCMP_CHISQR = 1, HISTCMP_INTERSECT = 2, HISTCMP_BHATTACHARYYA = 3,
  HISTCMP_HELLINGER = HISTCMP_BHATTACHARYYA, HISTCMP_CHISQR_ALT = 4, HISTCMP_KL_DIV = 5
}
 

Histogram comparison methods.

More...
enum  ColorConversionCodes {
  COLOR_BGR2BGRA = 0 , COLOR_BGRA2BGR = 1 , COLOR_BGR2RGBA = 2 , COLOR_BGR2GRAY = 6 ,
  COLOR_BGR2BGR565 = 12 , COLOR_GRAY2BGR565 = 20 , COLOR_BGR2BGR555 = 22 , COLOR_GRAY2BGR555 = 30 ,
  COLOR_BGR2XYZ = 32 , COLOR_BGR2YCrCb = 36 , COLOR_BGR2HSV = 40 , COLOR_BGR2Lab = 44 ,
  COLOR_BGR2Luv = 50 , COLOR_BGR2HLS = 52 , COLOR_HSV2BGR = 54 , COLOR_BGR2YUV = 82 ,
  COLOR_YUV2RGB_NV12 = 90 , COLOR_YUV2RGB_UYVY = 107 , COLOR_RGBA2mRGBA = 125 , COLOR_RGB2YUV_I420 = 127 ,
  COLOR_BayerBG2BGR = 46 , COLOR_BayerBG2BGR_VNG = 62 , COLOR_BayerBG2BGR_EA = 135
}
 

the color conversion code

More...
enum  RectanglesIntersectTypes { INTERSECT_NONE = 0, INTERSECT_PARTIAL = 1, INTERSECT_FULL = 2 }
 

types of intersection between rectangles

More...
enum  TemplateMatchModes {
  TM_SQDIFF = 0, TM_SQDIFF_NORMED = 1, TM_CCORR = 2, TM_CCORR_NORMED = 3,
  TM_CCOEFF = 4, TM_CCOEFF_NORMED = 5
}
 

type of the template matching operation

More...
enum  ColormapTypes {
  COLORMAP_AUTUMN = 0, COLORMAP_BONE = 1, COLORMAP_JET = 2, COLORMAP_WINTER = 3,
  COLORMAP_RAINBOW = 4, COLORMAP_OCEAN = 5, COLORMAP_SUMMER = 6, COLORMAP_SPRING = 7,
  COLORMAP_COOL = 8, COLORMAP_HSV = 9, COLORMAP_PINK = 10, COLORMAP_HOT = 11,
  COLORMAP_PARULA = 12
}
 

GNU Octave/MATLAB equivalent colormaps.

More...
enum  MarkerTypes {
  MARKER_CROSS = 0, MARKER_TILTED_CROSS = 1, MARKER_STAR = 2, MARKER_DIAMOND = 3,
  MARKER_SQUARE = 4, MARKER_TRIANGLE_UP = 5, MARKER_TRIANGLE_DOWN = 6
}
 

Possible set of marker types used for the cv::drawMarker function.

More...

Functions

CV_EXPORTS void error (int _code, const String &_err, const char *_func, const char *_file, int _line)
 Signals an error and raises the exception.
CV_INLINE CV_NORETURN void errorNoReturn (int _code, const String &_err, const char *_func, const char *_file, int _line)
 same as cv::error, but does not return
CV_EXPORTS_W float cubeRoot (float val)
 Computes the cube root of an argument.
CV_EXPORTS_W float fastAtan2 (float y, float x)
 Calculates the angle of a 2D vector in degrees.
CV_EXPORTS int LU (float *A, size_t astep, int m, float *b, size_t bstep, int n)
 proxy for hal::LU
CV_EXPORTS int LU (double *A, size_t astep, int m, double *b, size_t bstep, int n)
 proxy for hal::LU
CV_EXPORTS bool Cholesky (float *A, size_t astep, int m, float *b, size_t bstep, int n)
 proxy for hal::Cholesky
CV_EXPORTS bool Cholesky (double *A, size_t astep, int m, double *b, size_t bstep, int n)
 proxy for hal::Cholesky
CV_EXPORTS Mat cvarrToMat (const CvArr *arr, bool copyData=false, bool allowND=true, int coiMode=0, AutoBuffer< double > *buf=0)
 converts array (CvMat or IplImage) to cv::Mat
CV_EXPORTS void extractImageCOI (const CvArr *arr, OutputArray coiimg, int coi=-1)
 extracts Channel of Interest from CvMat or IplImage and makes cv::Mat out of it.
CV_EXPORTS void insertImageCOI (InputArray coiimg, CvArr *arr, int coi=-1)
 inserts single-channel cv::Mat into a multi-channel CvMat or IplImage
CV_EXPORTS void * fastMalloc (size_t bufSize)
 Allocates an aligned memory buffer.
CV_EXPORTS void fastFree (void *ptr)
 Deallocates a memory buffer.
template<typename T >
void swap (Ptr< T > &ptr1, Ptr< T > &ptr2)
 Equivalent to ptr1.swap(ptr2).
template<typename T >
bool operator== (const Ptr< T > &ptr1, const Ptr< T > &ptr2)
 Return whether ptr1.get() and ptr2.get() are equal and not equal, respectively.
template<typename T >
Ptr< T > makePtr ()
 `makePtr<T>(...)` is equivalent to `Ptr<T>(new T(...))`.
template<typename T , typename A1 >
Ptr< T > makePtr (const A1 &a1)
template<typename T , typename A1 , typename A2 >
Ptr< T > makePtr (const A1 &a1, const A2 &a2)
template<typename T , typename A1 , typename A2 , typename A3 >
Ptr< T > makePtr (const A1 &a1, const A2 &a2, const A3 &a3)
template<typename T , typename A1 , typename A2 , typename A3 , typename A4 >
Ptr< T > makePtr (const A1 &a1, const A2 &a2, const A3 &a3, const A4 &a4)
template<typename T , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 >
Ptr< T > makePtr (const A1 &a1, const A2 &a2, const A3 &a3, const A4 &a4, const A5 &a5)
template<typename T , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 >
Ptr< T > makePtr (const A1 &a1, const A2 &a2, const A3 &a3, const A4 &a4, const A5 &a5, const A6 &a6)
template<typename T , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 >
Ptr< T > makePtr (const A1 &a1, const A2 &a2, const A3 &a3, const A4 &a4, const A5 &a5, const A6 &a6, const A7 &a7)
template<typename T , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 >
Ptr< T > makePtr (const A1 &a1, const A2 &a2, const A3 &a3, const A4 &a4, const A5 &a5, const A6 &a6, const A7 &a7, const A8 &a8)
template<typename T , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 >
Ptr< T > makePtr (const A1 &a1, const A2 &a2, const A3 &a3, const A4 &a4, const A5 &a5, const A6 &a6, const A7 &a7, const A8 &a8, const A9 &a9)
template<typename T , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 >
Ptr< T > makePtr (const A1 &a1, const A2 &a2, const A3 &a3, const A4 &a4, const A5 &a5, const A6 &a6, const A7 &a7, const A8 &a8, const A9 &a9, const A10 &a10)
 OPENCV_HAL_IMPL_BIN_OP (+) OPENCV_HAL_IMPL_BIN_OP(-) OPENCV_HAL_IMPL_BIN_OP(*) OPENCV_HAL_IMPL_BIN_OP(/) OPENCV_HAL_IMPL_BIT_OP(&) OPENCV_HAL_IMPL_BIT_OP(|) OPENCV_HAL_IMPL_BIT_OP(^) template< typename _Tp
 Add values.
 OPENCV_HAL_IMPL_MATH_FUNC (v_sqrt, std::sqrt, _Tp) OPENCV_HAL_IMPL_MATH_FUNC(v_abs
 Square root of elements.
V_TypeTraits< _Tp >::abs_type
V_TypeTraits< _Tp >::abs_type 
OPENCV_HAL_IMPL_MATH_FUNC (v_round, cvRound, int) OPENCV_HAL_IMPL_MATH_FUNC(v_floor
 Round elements.
V_TypeTraits< _Tp >::abs_type
V_TypeTraits< _Tp >::abs_type
int 
OPENCV_HAL_IMPL_MATH_FUNC (v_ceil, cvCeil, int) OPENCV_HAL_IMPL_MATH_FUNC(v_trunc
 Ceil elements.
 OPENCV_HAL_IMPL_MINMAX_FUNC (v_min, std::min) OPENCV_HAL_IMPL_MINMAX_FUNC(v_max
 Choose min values for each pair.
std::max OPENCV_HAL_IMPL_REDUCE_MINMAX_FUNC (v_reduce_min, std::min) OPENCV_HAL_IMPL_REDUCE_MINMAX_FUNC(v_reduce_max
 Find one min value.
 OPENCV_HAL_IMPL_CMP_OP (<) OPENCV_HAL_IMPL_CMP_OP(>) OPENCV_HAL_IMPL_CMP_OP(<
 Less-than comparison.
 OPENCV_HAL_IMPL_ADD_SUB_OP (v_add_wrap,+,(_Tp), _Tp) OPENCV_HAL_IMPL_ADD_SUB_OP(v_sub_wrap
 Add values without saturation.
template<typename _Tp , int n>
_Tp v_reg< typename
V_TypeTraits< _Tp >::abs_type,
n > 
v_absdiff (const v_reg< _Tp, n > &a, const v_reg< _Tp, n > &b)
 Absolute difference.
v_float32x4 v_absdiff (const v_float32x4 &a, const v_float32x4 &b)
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. For 32-bit floating point values.
template<typename _Tp , int n>
v_reg< _Tp, n > v_invsqrt (const v_reg< _Tp, n > &a)
 Inversed square root.
template<typename _Tp , int n>
v_reg< _Tp, n > v_magnitude (const v_reg< _Tp, n > &a, const v_reg< _Tp, n > &b)
 Magnitude.
template<typename _Tp , int n>
v_reg< _Tp, n > v_sqr_magnitude (const v_reg< _Tp, n > &a, const v_reg< _Tp, n > &b)
 Square of the magnitude.
template<typename _Tp , int n>
v_reg< _Tp, n > v_muladd (const v_reg< _Tp, n > &a, const v_reg< _Tp, n > &b, const v_reg< _Tp, n > &c)
 Multiply and add.
template<typename _Tp , int n>
v_reg< typename V_TypeTraits
< _Tp >::w_type, n/2 > 
v_dotprod (const v_reg< _Tp, n > &a, const v_reg< _Tp, n > &b)
 Dot product of elements.
template<typename _Tp , int n>
void v_mul_expand (const v_reg< _Tp, n > &a, const v_reg< _Tp, n > &b, v_reg< typename V_TypeTraits< _Tp >::w_type, n/2 > &c, v_reg< typename V_TypeTraits< _Tp >::w_type, n/2 > &d)
 Multiply and expand.
 OPENCV_HAL_IMPL_SHIFT_OP (<<) OPENCV_HAL_IMPL_SHIFT_OP(>>) template< typename _Tp
 Bitwise shift left.
template<typename _Tp , int n>
int v_signmask (const v_reg< _Tp, n > &a)
 Get negative values mask.
template<typename _Tp , int n>
bool v_check_all (const v_reg< _Tp, n > &a)
 Check if all packed values are less than zero.
template<typename _Tp , int n>
bool v_check_any (const v_reg< _Tp, n > &a)
 Check if any of packed values is less than zero.
template<typename _Tp , int n>
v_reg< _Tp, n > v_select (const v_reg< _Tp, n > &mask, const v_reg< _Tp, n > &a, const v_reg< _Tp, n > &b)
 Bitwise select.
template<typename _Tp , int n>
void v_expand (const v_reg< _Tp, n > &a, v_reg< typename V_TypeTraits< _Tp >::w_type, n/2 > &b0, v_reg< typename V_TypeTraits< _Tp >::w_type, n/2 > &b1)
 Expand values to the wider pack type.
template<typename _Tp , int n>
void v_zip (const v_reg< _Tp, n > &a0, const v_reg< _Tp, n > &a1, v_reg< _Tp, n > &b0, v_reg< _Tp, n > &b1)
 Interleave two vectors.
template<typename _Tp >
v_reg< _Tp, V_SIMD128Traits
< _Tp >::nlanes > 
v_load (const _Tp *ptr)
 Load register contents from memory.
template<typename _Tp >
v_reg< _Tp, V_SIMD128Traits
< _Tp >::nlanes > 
v_load_aligned (const _Tp *ptr)
 Load register contents from memory (aligned)
template<typename _Tp >
v_reg< _Tp, V_SIMD128Traits
< _Tp >::nlanes > 
v_load_halves (const _Tp *loptr, const _Tp *hiptr)
 Load register contents from two memory blocks.
template<typename _Tp >
v_reg< typename V_TypeTraits
< _Tp >::w_type,
V_SIMD128Traits< _Tp >::nlanes/2 > 
v_load_expand (const _Tp *ptr)
 Load register contents from memory with double expand.
template<typename _Tp >
v_reg< typename V_TypeTraits
< _Tp >::q_type,
V_SIMD128Traits< _Tp >::nlanes/4 > 
v_load_expand_q (const _Tp *ptr)
 Load register contents from memory with quad expand.
template<typename _Tp , int n>
void v_load_deinterleave (const _Tp *ptr, v_reg< _Tp, n > &a, v_reg< _Tp, n > &b, v_reg< _Tp, n > &c)
 Load and deinterleave (4 channels)
template<typename _Tp , int n>
void v_load_deinterleave (const _Tp *ptr, v_reg< _Tp, n > &a, v_reg< _Tp, n > &b, v_reg< _Tp, n > &c, v_reg< _Tp, n > &d)
 Load and deinterleave (3 channels)
template<typename _Tp , int n>
void v_store_interleave (_Tp *ptr, const v_reg< _Tp, n > &a, const v_reg< _Tp, n > &b, const v_reg< _Tp, n > &c)
 Interleave and store (3 channels)
template<typename _Tp , int n>
void v_store_interleave (_Tp *ptr, const v_reg< _Tp, n > &a, const v_reg< _Tp, n > &b, const v_reg< _Tp, n > &c, const v_reg< _Tp, n > &d)
 Interleave and store (4 channels)
template<typename _Tp , int n>
void v_store (_Tp *ptr, const v_reg< _Tp, n > &a)
 Store data to memory.
template<typename _Tp , int n>
void v_store_low (_Tp *ptr, const v_reg< _Tp, n > &a)
 Store data to memory (lower half)
template<typename _Tp , int n>
void v_store_high (_Tp *ptr, const v_reg< _Tp, n > &a)
 Store data to memory (higher half)
template<typename _Tp , int n>
void v_store_aligned (_Tp *ptr, const v_reg< _Tp, n > &a)
 Store data to memory (aligned)
template<typename _Tp , int n>
v_reg< _Tp, n > v_combine_low (const v_reg< _Tp, n > &a, const v_reg< _Tp, n > &b)
 Combine vector from first elements of two vectors.
template<typename _Tp , int n>
v_reg< _Tp, n > v_combine_high (const v_reg< _Tp, n > &a, const v_reg< _Tp, n > &b)
 Combine vector from last elements of two vectors.
template<typename _Tp , int n>
void v_recombine (const v_reg< _Tp, n > &a, const v_reg< _Tp, n > &b, v_reg< _Tp, n > &low, v_reg< _Tp, n > &high)
 Combine two vectors from lower and higher parts of two other vectors.
template<int s, typename _Tp , int n>
v_reg< _Tp, n > v_extract (const v_reg< _Tp, n > &a, const v_reg< _Tp, n > &b)
 Vector extract.
template<int n>
v_reg< int, n > v_round (const v_reg< float, n > &a)
 Round.
template<int n>
v_reg< int, n > v_floor (const v_reg< float, n > &a)
 Floor.
template<int n>
v_reg< int, n > v_ceil (const v_reg< float, n > &a)
 Ceil.
template<int n>
v_reg< int, n > v_trunc (const v_reg< float, n > &a)
 Trunc.
template<int n>
v_reg< int, n *2 > v_round (const v_reg< double, n > &a)
template<int n>
v_reg< int, n *2 > v_floor (const v_reg< double, n > &a)
template<int n>
v_reg< int, n *2 > v_ceil (const v_reg< double, n > &a)
template<int n>
v_reg< int, n *2 > v_trunc (const v_reg< double, n > &a)
template<int n>
v_reg< float, n > v_cvt_f32 (const v_reg< int, n > &a)
 Convert to float.
template<int n>
v_reg< double, n > v_cvt_f64 (const v_reg< int, n *2 > &a)
 Convert to double.
template<int n>
v_reg< double, n > v_cvt_f64 (const v_reg< float, n *2 > &a)
 Convert to double.
template<typename _Tp >
void v_transpose4x4 (v_reg< _Tp, 4 > &a0, const v_reg< _Tp, 4 > &a1, const v_reg< _Tp, 4 > &a2, const v_reg< _Tp, 4 > &a3, v_reg< _Tp, 4 > &b0, v_reg< _Tp, 4 > &b1, v_reg< _Tp, 4 > &b2, v_reg< _Tp, 4 > &b3)
 Transpose 4x4 matrix.
pack pack pack pack_u v_float32x4 v_matmul (const v_float32x4 &v, const v_float32x4 &m0, const v_float32x4 &m1, const v_float32x4 &m2, const v_float32x4 &m3)
 Matrix multiplication.
CV_EXPORTS_W int solveLP (const Mat &Func, const Mat &Constr, Mat &z)
 Solve given (non-integer) linear programming problem using the Simplex Algorithm (Simplex Method).
template<typename _Tp >
static _Tp saturate_cast (uchar v)
 Template function for accurate conversion from one primitive type to another.
template<typename _Tp >
static _Tp saturate_cast (schar v)
template<typename _Tp >
static _Tp saturate_cast (ushort v)
template<typename _Tp >
static _Tp saturate_cast (short v)
template<typename _Tp >
static _Tp saturate_cast (unsigned v)
template<typename _Tp >
static _Tp saturate_cast (int v)
template<typename _Tp >
static _Tp saturate_cast (float v)
template<typename _Tp >
static _Tp saturate_cast (double v)
template<typename _Tp >
static _Tp saturate_cast (int64 v)
template<typename _Tp >
static _Tp saturate_cast (uint64 v)
void flip (InputArray src, OutputArray dst, int flipCode)
 Flips a 2D array around vertical, horizontal, or both axes.
void repeat (InputArray src, int ny, int nx, OutputArray dst)
 Fills the output array with repeated copies of the input array.
Mat repeat (const Mat &src, int ny, int nx)
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
static int initialize_simplex (Mat_< double > &c, Mat_< double > &b, double &v, vector< int > &N, vector< int > &B, vector< unsigned int > &indexToRow)
 Due to technical considerations, the format of input b and c is somewhat special: both b and c should be one column bigger than corresponding b and c of linear problem and the leftmost column will be used internally by this procedure - it should not be cleaned before the call to procedure and may contain mess after it also initializes N and B and does not make any assumptions about their init values.
static int inner_simplex (Mat_< double > &c, Mat_< double > &b, double &v, vector< int > &N, vector< int > &B, vector< unsigned int > &indexToRow)
void magnitude (InputArray x, InputArray y, OutputArray magnitude)
 Calculates the magnitude of 2D vectors.
void phase (InputArray x, InputArray y, OutputArray angle, bool angleInDegrees=false)
 Calculates the rotation angle of 2D vectors.
void cartToPolar (InputArray x, InputArray y, OutputArray magnitude, OutputArray angle, bool angleInDegrees=false)
 Calculates the magnitude and angle of 2D vectors.
void polarToCart (InputArray magnitude, InputArray angle, OutputArray x, OutputArray y, bool angleInDegrees=false)
 Calculates x and y coordinates of 2D vectors from their magnitude and angle.
void exp (InputArray src, OutputArray dst)
 Calculates the exponent of every array element.
void log (InputArray src, OutputArray dst)
 Calculates the natural logarithm of every array element.
void pow (InputArray src, double power, OutputArray dst)
 Raises every array element to a power.
void sqrt (InputArray src, OutputArray dst)
 Calculates a square root of array elements.
void patchNaNs (InputOutputArray a, double val=0)
 converts NaN's to the given number
void swap (Mat &a, Mat &b)
 Swaps two matrices.
double norm (const SparseMat &src, int normType)
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
void minMaxLoc (const SparseMat &a, double *minVal, double *maxVal, int *minIdx=0, int *maxIdx=0)
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
void normalize (const SparseMat &src, SparseMat &dst, double alpha, int normType)
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
bool checkHardwareSupport (int feature)
 Returns true if the specified feature is supported by the host hardware.
void setUseOptimized (bool onoff)
 Enables or disables the optimized code.
bool useOptimized ()
 Returns the status of optimized code usage.
int64 getTickCount ()
 Returns the number of ticks.
double getTickFrequency ()
 Returns the number of ticks per second.
int64 getCPUTickCount ()
 Returns the number of CPU ticks.
const String & getBuildInformation ()
 Returns full configuration time cmake output.
String format (const char *fmt,...)
 Returns a text string formatted using the printf-like expression.
bool setBreakOnError (bool flag)
 Sets/resets the break-on-error mode.
void error (const Exception &exc)
 Signals an error and raises the exception.
void swap (UMat &a, UMat &b)
CV_EXPORTS ErrorCallback redirectError (ErrorCallback errCallback, void *userdata=0, void **prevUserdata=0)
 Sets the new error handler and the optional user data.
CV_EXPORTS_W void setNumThreads (int nthreads)
 OpenCV will try to set the number of threads for the next parallel region.
CV_EXPORTS_W int getNumThreads ()
 Returns the number of threads used by OpenCV for parallel regions.
CV_EXPORTS_W int getThreadNum ()
 Returns the index of the currently executed thread within the current parallel region.
CV_EXPORTS_W int getNumberOfCPUs ()
 Returns the number of logical CPUs available for the process.
template<typename _Tp >
static _Tp * alignPtr (_Tp *ptr, int n=(int) sizeof(_Tp))
 Aligns a pointer to the specified number of bytes.
static size_t alignSize (size_t sz, int n)
 Aligns a buffer size to the specified number of bytes.
CV_EXPORTS void parallel_for_ (const Range &range, const ParallelLoopBody &body, double nstripes=-1.)
 Parallel data processor.
CV_EXPORTS_W int borderInterpolate (int p, int len, int borderType)
 Computes the source location of an extrapolated pixel.
CV_EXPORTS_W void copyMakeBorder (InputArray src, OutputArray dst, int top, int bottom, int left, int right, int borderType, const Scalar &value=Scalar())
 Forms a border around an image.
CV_EXPORTS_W void add (InputArray src1, InputArray src2, OutputArray dst, InputArray mask=noArray(), int dtype=-1)
 Calculates the per-element sum of two arrays or an array and a scalar.
CV_EXPORTS_W void subtract (InputArray src1, InputArray src2, OutputArray dst, InputArray mask=noArray(), int dtype=-1)
 Calculates the per-element difference between two arrays or array and a scalar.
CV_EXPORTS_W void multiply (InputArray src1, InputArray src2, OutputArray dst, double scale=1, int dtype=-1)
 Calculates the per-element scaled product of two arrays.
CV_EXPORTS_W void divide (InputArray src1, InputArray src2, OutputArray dst, double scale=1, int dtype=-1)
 Performs per-element division of two arrays or a scalar by an array.
CV_EXPORTS_W void divide (double scale, InputArray src2, OutputArray dst, int dtype=-1)
CV_EXPORTS_W void scaleAdd (InputArray src1, double alpha, InputArray src2, OutputArray dst)
 Calculates the sum of a scaled array and another array.
CV_EXPORTS_W void addWeighted (InputArray src1, double alpha, InputArray src2, double beta, double gamma, OutputArray dst, int dtype=-1)
 Calculates the weighted sum of two arrays.
CV_EXPORTS_W void convertScaleAbs (InputArray src, OutputArray dst, double alpha=1, double beta=0)
 Scales, calculates absolute values, and converts the result to 8-bit.
CV_EXPORTS_W void LUT (InputArray src, InputArray lut, OutputArray dst)
 Performs a look-up table transform of an array.
 CV_EXPORTS_AS (sumElems) Scalar sum(InputArray src)
 Calculates the sum of array elements.
CV_EXPORTS_W int countNonZero (InputArray src)
 Counts non-zero array elements.
CV_EXPORTS_W void findNonZero (InputArray src, OutputArray idx)
 Returns the list of locations of non-zero pixels.
CV_EXPORTS_W Scalar mean (InputArray src, InputArray mask=noArray())
 Calculates an average (mean) of array elements.
CV_EXPORTS_W void meanStdDev (InputArray src, OutputArray mean, OutputArray stddev, InputArray mask=noArray())
 Calculates a mean and standard deviation of array elements.
CV_EXPORTS_W double norm (InputArray src1, int normType=NORM_L2, InputArray mask=noArray())
 Calculates an absolute array norm, an absolute difference norm, or a relative difference norm.
CV_EXPORTS_W double norm (InputArray src1, InputArray src2, int normType=NORM_L2, InputArray mask=noArray())
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
CV_EXPORTS_W double PSNR (InputArray src1, InputArray src2)
 computes PSNR image/video quality metric
CV_EXPORTS_W void batchDistance (InputArray src1, InputArray src2, OutputArray dist, int dtype, OutputArray nidx, int normType=NORM_L2, int K=0, InputArray mask=noArray(), int update=0, bool crosscheck=false)
 naive nearest neighbor finder
CV_EXPORTS_W void normalize (InputArray src, InputOutputArray dst, double alpha=1, double beta=0, int norm_type=NORM_L2, int dtype=-1, InputArray mask=noArray())
 Normalizes the norm or value range of an array.
CV_EXPORTS_W void minMaxLoc (InputArray src, CV_OUT double *minVal, CV_OUT double *maxVal=0, CV_OUT Point *minLoc=0, CV_OUT Point *maxLoc=0, InputArray mask=noArray())
 Finds the global minimum and maximum in an array.
CV_EXPORTS void minMaxIdx (InputArray src, double *minVal, double *maxVal=0, int *minIdx=0, int *maxIdx=0, InputArray mask=noArray())
 Finds the global minimum and maximum in an array.
CV_EXPORTS_W void reduce (InputArray src, OutputArray dst, int dim, int rtype, int dtype=-1)
 Reduces a matrix to a vector.
CV_EXPORTS void merge (const Mat *mv, size_t count, OutputArray dst)
 Creates one multi-channel array out of several single-channel ones.
CV_EXPORTS_W void merge (InputArrayOfArrays mv, OutputArray dst)
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
CV_EXPORTS void split (const Mat &src, Mat *mvbegin)
 Divides a multi-channel array into several single-channel arrays.
CV_EXPORTS_W void split (InputArray m, OutputArrayOfArrays mv)
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
CV_EXPORTS void mixChannels (const Mat *src, size_t nsrcs, Mat *dst, size_t ndsts, const int *fromTo, size_t npairs)
 Copies specified channels from input arrays to the specified channels of output arrays.
CV_EXPORTS void mixChannels (InputArrayOfArrays src, InputOutputArrayOfArrays dst, const int *fromTo, size_t npairs)
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
CV_EXPORTS_W void mixChannels (InputArrayOfArrays src, InputOutputArrayOfArrays dst, const std::vector< int > &fromTo)
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
CV_EXPORTS_W void extractChannel (InputArray src, OutputArray dst, int coi)
 extracts a single channel from src (coi is 0-based index)
CV_EXPORTS_W void insertChannel (InputArray src, InputOutputArray dst, int coi)
 inserts a single channel to dst (coi is 0-based index)
CV_EXPORTS void hconcat (const Mat *src, size_t nsrc, OutputArray dst)
 Applies horizontal concatenation to given matrices.
CV_EXPORTS void hconcat (InputArray src1, InputArray src2, OutputArray dst)
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
CV_EXPORTS_W void hconcat (InputArrayOfArrays src, OutputArray dst)
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
CV_EXPORTS void vconcat (const Mat *src, size_t nsrc, OutputArray dst)
 Applies vertical concatenation to given matrices.
CV_EXPORTS void vconcat (InputArray src1, InputArray src2, OutputArray dst)
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
CV_EXPORTS_W void vconcat (InputArrayOfArrays src, OutputArray dst)
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
CV_EXPORTS_W void bitwise_and (InputArray src1, InputArray src2, OutputArray dst, InputArray mask=noArray())
 computes bitwise conjunction of the two arrays (dst = src1 & src2) Calculates the per-element bit-wise conjunction of two arrays or an array and a scalar.
CV_EXPORTS_W void bitwise_or (InputArray src1, InputArray src2, OutputArray dst, InputArray mask=noArray())
 Calculates the per-element bit-wise disjunction of two arrays or an array and a scalar.
CV_EXPORTS_W void bitwise_xor (InputArray src1, InputArray src2, OutputArray dst, InputArray mask=noArray())
 Calculates the per-element bit-wise "exclusive or" operation on two arrays or an array and a scalar.
CV_EXPORTS_W void bitwise_not (InputArray src, OutputArray dst, InputArray mask=noArray())
 Inverts every bit of an array.
CV_EXPORTS_W void absdiff (InputArray src1, InputArray src2, OutputArray dst)
 Calculates the per-element absolute difference between two arrays or between an array and a scalar.
CV_EXPORTS_W void inRange (InputArray src, InputArray lowerb, InputArray upperb, OutputArray dst)
 Checks if array elements lie between the elements of two other arrays.
CV_EXPORTS_W void compare (InputArray src1, InputArray src2, OutputArray dst, int cmpop)
 Performs the per-element comparison of two arrays or an array and scalar value.
CV_EXPORTS_W void min (InputArray src1, InputArray src2, OutputArray dst)
 Calculates per-element minimum of two arrays or an array and a scalar.
CV_EXPORTS void min (const Mat &src1, const Mat &src2, Mat &dst)
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.needed to avoid conflicts with const _Tp& std::min(const _Tp&, const _Tp&, _Compare)
CV_EXPORTS void min (const UMat &src1, const UMat &src2, UMat &dst)
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.needed to avoid conflicts with const _Tp& std::min(const _Tp&, const _Tp&, _Compare)
CV_EXPORTS_W void max (InputArray src1, InputArray src2, OutputArray dst)
 Calculates per-element maximum of two arrays or an array and a scalar.
CV_EXPORTS void max (const Mat &src1, const Mat &src2, Mat &dst)
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.needed to avoid conflicts with const _Tp& std::min(const _Tp&, const _Tp&, _Compare)
CV_EXPORTS void max (const UMat &src1, const UMat &src2, UMat &dst)
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.needed to avoid conflicts with const _Tp& std::min(const _Tp&, const _Tp&, _Compare)
CV_EXPORTS_W bool checkRange (InputArray a, bool quiet=true, CV_OUT Point *pos=0, double minVal=-DBL_MAX, double maxVal=DBL_MAX)
 Checks every element of an input array for invalid values.
CV_EXPORTS_W void gemm (InputArray src1, InputArray src2, double alpha, InputArray src3, double beta, OutputArray dst, int flags=0)
 Performs generalized matrix multiplication.
CV_EXPORTS_W void mulTransposed (InputArray src, OutputArray dst, bool aTa, InputArray delta=noArray(), double scale=1, int dtype=-1)
 Calculates the product of a matrix and its transposition.
CV_EXPORTS_W void transpose (InputArray src, OutputArray dst)
 Transposes a matrix.
CV_EXPORTS_W void transform (InputArray src, OutputArray dst, InputArray m)
 Performs the matrix transformation of every array element.
CV_EXPORTS_W void perspectiveTransform (InputArray src, OutputArray dst, InputArray m)
 Performs the perspective matrix transformation of vectors.
CV_EXPORTS_W void completeSymm (InputOutputArray mtx, bool lowerToUpper=false)
 Copies the lower or the upper half of a square matrix to another half.
CV_EXPORTS_W void setIdentity (InputOutputArray mtx, const Scalar &s=Scalar(1))
 Initializes a scaled identity matrix.
CV_EXPORTS_W double determinant (InputArray mtx)
 Returns the determinant of a square floating-point matrix.
CV_EXPORTS_W Scalar trace (InputArray mtx)
 Returns the trace of a matrix.
CV_EXPORTS_W double invert (InputArray src, OutputArray dst, int flags=DECOMP_LU)
 Finds the inverse or pseudo-inverse of a matrix.
CV_EXPORTS_W bool solve (InputArray src1, InputArray src2, OutputArray dst, int flags=DECOMP_LU)
 Solves one or more linear systems or least-squares problems.
CV_EXPORTS_W void sort (InputArray src, OutputArray dst, int flags)
 Sorts each row or each column of a matrix.
CV_EXPORTS_W void sortIdx (InputArray src, OutputArray dst, int flags)
 Sorts each row or each column of a matrix.
CV_EXPORTS_W int solveCubic (InputArray coeffs, OutputArray roots)
 Finds the real roots of a cubic equation.
CV_EXPORTS_W double solvePoly (InputArray coeffs, OutputArray roots, int maxIters=300)
 Finds the real or complex roots of a polynomial equation.
CV_EXPORTS_W bool eigen (InputArray src, OutputArray eigenvalues, OutputArray eigenvectors=noArray())
 Calculates eigenvalues and eigenvectors of a symmetric matrix.
CV_EXPORTS void calcCovarMatrix (const Mat *samples, int nsamples, Mat &covar, Mat &mean, int flags, int ctype=CV_64F)
 Calculates the covariance matrix of a set of vectors.
CV_EXPORTS_W void calcCovarMatrix (InputArray samples, OutputArray covar, InputOutputArray mean, int flags, int ctype=CV_64F)
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
CV_EXPORTS_W void PCACompute (InputArray data, InputOutputArray mean, OutputArray eigenvectors, int maxComponents=0)
 wrap PCA::operator()
CV_EXPORTS_W void PCACompute (InputArray data, InputOutputArray mean, OutputArray eigenvectors, double retainedVariance)
 wrap PCA::operator()
CV_EXPORTS_W void PCAProject (InputArray data, InputArray mean, InputArray eigenvectors, OutputArray result)
 wrap PCA::project
CV_EXPORTS_W void PCABackProject (InputArray data, InputArray mean, InputArray eigenvectors, OutputArray result)
 wrap PCA::backProject
CV_EXPORTS_W void SVDecomp (InputArray src, OutputArray w, OutputArray u, OutputArray vt, int flags=0)
 wrap SVD::compute
CV_EXPORTS_W void SVBackSubst (InputArray w, InputArray u, InputArray vt, InputArray rhs, OutputArray dst)
 wrap SVD::backSubst
CV_EXPORTS_W double Mahalanobis (InputArray v1, InputArray v2, InputArray icovar)
 Calculates the Mahalanobis distance between two vectors.
CV_EXPORTS_W void dft (InputArray src, OutputArray dst, int flags=0, int nonzeroRows=0)
 Performs a forward or inverse Discrete Fourier transform of a 1D or 2D floating-point array.
CV_EXPORTS_W void idft (InputArray src, OutputArray dst, int flags=0, int nonzeroRows=0)
 Calculates the inverse Discrete Fourier Transform of a 1D or 2D array.
CV_EXPORTS_W void dct (InputArray src, OutputArray dst, int flags=0)
 Performs a forward or inverse discrete Cosine transform of 1D or 2D array.
CV_EXPORTS_W void idct (InputArray src, OutputArray dst, int flags=0)
 Calculates the inverse Discrete Cosine Transform of a 1D or 2D array.
CV_EXPORTS_W void mulSpectrums (InputArray a, InputArray b, OutputArray c, int flags, bool conjB=false)
 Performs the per-element multiplication of two Fourier spectrums.
CV_EXPORTS_W int getOptimalDFTSize (int vecsize)
 Returns the optimal DFT size for a given vector size.
CV_EXPORTS RNGtheRNG ()
 Returns the default random number generator.
CV_EXPORTS_W void randu (InputOutputArray dst, InputArray low, InputArray high)
 Generates a single uniformly-distributed random number or an array of random numbers.
CV_EXPORTS_W void randn (InputOutputArray dst, InputArray mean, InputArray stddev)
 Fills the array with normally distributed random numbers.
CV_EXPORTS_W void randShuffle (InputOutputArray dst, double iterFactor=1., RNG *rng=0)
 Shuffles the array elements randomly.
CV_EXPORTS_W double kmeans (InputArray data, int K, InputOutputArray bestLabels, TermCriteria criteria, int attempts, int flags, OutputArray centers=noArray())
 Finds centers of clusters and groups input samples around the clusters.
void applyColorMap (InputArray src, OutputArray dst, int colormap)
 Applies a GNU Octave/MATLAB equivalent colormap on a given image.
void convexHull (InputArray points, OutputArray hull, bool clockwise=false, bool returnPoints=true)
 Finds the convex hull of a point set.
void convexityDefects (InputArray contour, InputArray convexhull, OutputArray convexityDefects)
 Finds the convexity defects of a contour.
bool isContourConvex (InputArray contour)
 Tests a contour convexity.
void line (InputOutputArray img, Point pt1, Point pt2, const Scalar &color, int thickness=1, int lineType=LINE_8, int shift=0)
 Draws a line segment connecting two points.
void arrowedLine (InputOutputArray img, Point pt1, Point pt2, const Scalar &color, int thickness=1, int line_type=8, int shift=0, double tipLength=0.1)
 Draws a arrow segment pointing from the first point to the second one.
void rectangle (InputOutputArray img, Point pt1, Point pt2, const Scalar &color, int thickness=1, int lineType=LINE_8, int shift=0)
 Draws a simple, thick, or filled up-right rectangle.
void circle (InputOutputArray img, Point center, int radius, const Scalar &color, int thickness=1, int lineType=LINE_8, int shift=0)
 Draws a circle.
void ellipse (InputOutputArray img, Point center, Size axes, double angle, double startAngle, double endAngle, const Scalar &color, int thickness=1, int lineType=LINE_8, int shift=0)
 Draws a simple or thick elliptic arc or fills an ellipse sector.
void ellipse (InputOutputArray img, const RotatedRect &box, const Scalar &color, int thickness=1, int lineType=LINE_8)
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
void fillConvexPoly (Mat &img, const Point *pts, int npts, const Scalar &color, int line_type, int shift)
void fillPoly (Mat &img, const Point **pts, const int *npts, int ncontours, const Scalar &color, int line_type, int shift, Point offset)
void polylines (Mat &img, const Point *const *pts, const int *npts, int ncontours, bool isClosed, const Scalar &color, int thickness, int line_type, int shift)
void putText (InputOutputArray img, const String &text, Point org, int fontFace, double fontScale, Scalar color, int thickness=1, int lineType=LINE_8, bool bottomLeftOrigin=false)
 Draws a text string.
int getKernelType (InputArray kernel, Point anchor)
 returns type (one of KERNEL_*) of 1D or 2D kernel specified by its coefficients.
Ptr< BaseRowFiltergetLinearRowFilter (int srcType, int bufType, InputArray kernel, int anchor, int symmetryType)
 returns the primitive row filter with the specified kernel
Ptr< BaseColumnFiltergetLinearColumnFilter (int bufType, int dstType, InputArray kernel, int anchor, int symmetryType, double delta=0, int bits=0)
 returns the primitive column filter with the specified kernel
Ptr< BaseFiltergetLinearFilter (int srcType, int dstType, InputArray kernel, Point anchor=Point(-1,-1), double delta=0, int bits=0)
 returns 2D filter with the specified kernel
Ptr< FilterEnginecreateSeparableLinearFilter (int srcType, int dstType, InputArray rowKernel, InputArray columnKernel, Point anchor=Point(-1,-1), double delta=0, int rowBorderType=BORDER_DEFAULT, int columnBorderType=-1, const Scalar &borderValue=Scalar())
 returns the separable linear filter engine
Ptr< FilterEnginecreateLinearFilter (int srcType, int dstType, InputArray kernel, Point _anchor=Point(-1,-1), double delta=0, int rowBorderType=BORDER_DEFAULT, int columnBorderType=-1, const Scalar &borderValue=Scalar())
 returns the non-separable linear filter engine
Ptr< FilterEnginecreateGaussianFilter (int type, Size ksize, double sigma1, double sigma2=0, int borderType=BORDER_DEFAULT)
 returns the Gaussian filter engine
Ptr< FilterEnginecreateDerivFilter (int srcType, int dstType, int dx, int dy, int ksize, int borderType=BORDER_DEFAULT)
 returns filter engine for the generalized Sobel operator
Ptr< BaseRowFiltergetRowSumFilter (int srcType, int sumType, int ksize, int anchor=-1)
 returns horizontal 1D box filter
Ptr< BaseColumnFiltergetColumnSumFilter (int sumType, int dstType, int ksize, int anchor=-1, double scale=1)
 returns vertical 1D box filter
Ptr< FilterEnginecreateBoxFilter (int srcType, int dstType, Size ksize, Point anchor=Point(-1,-1), bool normalize=true, int borderType=BORDER_DEFAULT)
 returns box filter engine
Ptr< BaseRowFiltergetMorphologyRowFilter (int op, int type, int ksize, int anchor=-1)
 returns horizontal 1D morphological filter
Ptr< BaseColumnFiltergetMorphologyColumnFilter (int op, int type, int ksize, int anchor=-1)
 returns vertical 1D morphological filter
Ptr< BaseFiltergetMorphologyFilter (int op, int type, InputArray kernel, Point anchor=Point(-1,-1))
 returns 2D morphological filter
CV_EXPORTS Ptr< FilterEnginecreateMorphologyFilter (int op, int type, InputArray kernel, Point anchor=Point(-1,-1), int rowBorderType=BORDER_CONSTANT, int columnBorderType=-1, const Scalar &borderValue=morphologyDefaultBorderValue())
 returns morphological filter engine. Only MORPH_ERODE and MORPH_DILATE are supported.
int rotatedRectangleIntersection (const RotatedRect &rect1, const RotatedRect &rect2, OutputArray intersectingRegion)
 Finds out if there is any intersection between two rotated rectangles.
CV_EXPORTS Ptr
< LineSegmentDetector
createLineSegmentDetector (int _refine=LSD_REFINE_STD, double _scale=0.8, double _sigma_scale=0.6, double _quant=2.0, double _ang_th=22.5, double _log_eps=0, double _density_th=0.7, int _n_bins=1024)
 Creates a smart pointer to a LineSegmentDetector object and initializes it.
static void medianBlur_8u_O1 (const Mat &_src, Mat &_dst, int ksize)
void spatialGradient (InputArray src, OutputArray dx, OutputArray dy, int ksize=3, int borderType=BORDER_DEFAULT)
 Calculates the first order image derivative in both x and y using a Sobel operator.
CV_EXPORTS_W Mat getGaussianKernel (int ksize, double sigma, int ktype=CV_64F)
 Returns Gaussian filter coefficients.
CV_EXPORTS_W void getDerivKernels (OutputArray kx, OutputArray ky, int dx, int dy, int ksize, bool normalize=false, int ktype=CV_32F)
 Returns filter coefficients for computing spatial image derivatives.
CV_EXPORTS_W Mat getGaborKernel (Size ksize, double sigma, double theta, double lambd, double gamma, double psi=CV_PI *0.5, int ktype=CV_64F)
 Returns Gabor filter coefficients.
static Scalar morphologyDefaultBorderValue ()
 returns "magic" border value for erosion and dilation. It is automatically transformed to Scalar::all(-DBL_MAX) for dilation.
CV_EXPORTS_W Mat getStructuringElement (int shape, Size ksize, Point anchor=Point(-1,-1))
 Returns a structuring element of the specified size and shape for morphological operations.
CV_EXPORTS_W void medianBlur (InputArray src, OutputArray dst, int ksize)
 Blurs an image using the median filter.
CV_EXPORTS_W void GaussianBlur (InputArray src, OutputArray dst, Size ksize, double sigmaX, double sigmaY=0, int borderType=BORDER_DEFAULT)
 Blurs an image using a Gaussian filter.
CV_EXPORTS_W void bilateralFilter (InputArray src, OutputArray dst, int d, double sigmaColor, double sigmaSpace, int borderType=BORDER_DEFAULT)
 Applies the bilateral filter to an image.
CV_EXPORTS_W void boxFilter (InputArray src, OutputArray dst, int ddepth, Size ksize, Point anchor=Point(-1,-1), bool normalize=true, int borderType=BORDER_DEFAULT)
 Blurs an image using the box filter.
CV_EXPORTS_W void sqrBoxFilter (InputArray _src, OutputArray _dst, int ddepth, Size ksize, Point anchor=Point(-1,-1), bool normalize=true, int borderType=BORDER_DEFAULT)
 Calculates the normalized sum of squares of the pixel values overlapping the filter.
CV_EXPORTS_W void blur (InputArray src, OutputArray dst, Size ksize, Point anchor=Point(-1,-1), int borderType=BORDER_DEFAULT)
 Blurs an image using the normalized box filter.
CV_EXPORTS_W void filter2D (InputArray src, OutputArray dst, int ddepth, InputArray kernel, Point anchor=Point(-1,-1), double delta=0, int borderType=BORDER_DEFAULT)
 Convolves an image with the kernel.
CV_EXPORTS_W void sepFilter2D (InputArray src, OutputArray dst, int ddepth, InputArray kernelX, InputArray kernelY, Point anchor=Point(-1,-1), double delta=0, int borderType=BORDER_DEFAULT)
 Applies a separable linear filter to an image.
CV_EXPORTS_W void Sobel (InputArray src, OutputArray dst, int ddepth, int dx, int dy, int ksize=3, double scale=1, double delta=0, int borderType=BORDER_DEFAULT)
 Calculates the first, second, third, or mixed image derivatives using an extended Sobel operator.
CV_EXPORTS_W void Scharr (InputArray src, OutputArray dst, int ddepth, int dx, int dy, double scale=1, double delta=0, int borderType=BORDER_DEFAULT)
 Calculates the first x- or y- image derivative using Scharr operator.
CV_EXPORTS_W void Laplacian (InputArray src, OutputArray dst, int ddepth, int ksize=1, double scale=1, double delta=0, int borderType=BORDER_DEFAULT)
 Calculates the Laplacian of an image.
CV_EXPORTS_W void Canny (InputArray image, OutputArray edges, double threshold1, double threshold2, int apertureSize=3, bool L2gradient=false)
 Finds edges in an image using the Canny algorithm Canny86 .
CV_EXPORTS_W void cornerMinEigenVal (InputArray src, OutputArray dst, int blockSize, int ksize=3, int borderType=BORDER_DEFAULT)
 Calculates the minimal eigenvalue of gradient matrices for corner detection.
CV_EXPORTS_W void cornerHarris (InputArray src, OutputArray dst, int blockSize, int ksize, double k, int borderType=BORDER_DEFAULT)
 Harris corner detector.
CV_EXPORTS_W void cornerEigenValsAndVecs (InputArray src, OutputArray dst, int blockSize, int ksize, int borderType=BORDER_DEFAULT)
 Calculates eigenvalues and eigenvectors of image blocks for corner detection.
CV_EXPORTS_W void preCornerDetect (InputArray src, OutputArray dst, int ksize, int borderType=BORDER_DEFAULT)
 Calculates a feature map for corner detection.
CV_EXPORTS_W void cornerSubPix (InputArray image, InputOutputArray corners, Size winSize, Size zeroZone, TermCriteria criteria)
 Refines the corner locations.
CV_EXPORTS_W void goodFeaturesToTrack (InputArray image, OutputArray corners, int maxCorners, double qualityLevel, double minDistance, InputArray mask=noArray(), int blockSize=3, bool useHarrisDetector=false, double k=0.04)
 Determines strong corners on an image.
CV_EXPORTS_W void HoughLines (InputArray image, OutputArray lines, double rho, double theta, int threshold, double srn=0, double stn=0, double min_theta=0, double max_theta=CV_PI)
 Finds lines in a binary image using the standard Hough transform.
CV_EXPORTS_W void HoughLinesP (InputArray image, OutputArray lines, double rho, double theta, int threshold, double minLineLength=0, double maxLineGap=0)
 Finds line segments in a binary image using the probabilistic Hough transform.
CV_EXPORTS_W void HoughCircles (InputArray image, OutputArray circles, int method, double dp, double minDist, double param1=100, double param2=100, int minRadius=0, int maxRadius=0)
 Finds circles in a grayscale image using the Hough transform.
CV_EXPORTS_W void erode (InputArray src, OutputArray dst, InputArray kernel, Point anchor=Point(-1,-1), int iterations=1, int borderType=BORDER_CONSTANT, const Scalar &borderValue=morphologyDefaultBorderValue())
 Erodes an image by using a specific structuring element.
CV_EXPORTS_W void dilate (InputArray src, OutputArray dst, InputArray kernel, Point anchor=Point(-1,-1), int iterations=1, int borderType=BORDER_CONSTANT, const Scalar &borderValue=morphologyDefaultBorderValue())
 Dilates an image by using a specific structuring element.
CV_EXPORTS_W void morphologyEx (InputArray src, OutputArray dst, int op, InputArray kernel, Point anchor=Point(-1,-1), int iterations=1, int borderType=BORDER_CONSTANT, const Scalar &borderValue=morphologyDefaultBorderValue())
 Performs advanced morphological transformations.
CV_EXPORTS_W void resize (InputArray src, OutputArray dst, Size dsize, double fx=0, double fy=0, int interpolation=INTER_LINEAR)
 Resizes an image.
CV_EXPORTS_W void warpAffine (InputArray src, OutputArray dst, InputArray M, Size dsize, int flags=INTER_LINEAR, int borderMode=BORDER_CONSTANT, const Scalar &borderValue=Scalar())
 Applies an affine transformation to an image.
CV_EXPORTS_W void warpPerspective (InputArray src, OutputArray dst, InputArray M, Size dsize, int flags=INTER_LINEAR, int borderMode=BORDER_CONSTANT, const Scalar &borderValue=Scalar())
 Applies a perspective transformation to an image.
CV_EXPORTS_W void remap (InputArray src, OutputArray dst, InputArray map1, InputArray map2, int interpolation, int borderMode=BORDER_CONSTANT, const Scalar &borderValue=Scalar())
 Applies a generic geometrical transformation to an image.
CV_EXPORTS_W void convertMaps (InputArray map1, InputArray map2, OutputArray dstmap1, OutputArray dstmap2, int dstmap1type, bool nninterpolation=false)
 Converts image transformation maps from one representation to another.
CV_EXPORTS_W Mat getRotationMatrix2D (Point2f center, double angle, double scale)
 Calculates an affine matrix of 2D rotation.
CV_EXPORTS Mat getPerspectiveTransform (const Point2f src[], const Point2f dst[])
 returns 3x3 perspective transformation for the corresponding 4 point pairs.
CV_EXPORTS Mat getAffineTransform (const Point2f src[], const Point2f dst[])
 Calculates an affine transform from three pairs of the corresponding points.
CV_EXPORTS_W void invertAffineTransform (InputArray M, OutputArray iM)
 Inverts an affine transformation.
CV_EXPORTS_W Mat getPerspectiveTransform (InputArray src, InputArray dst)
 Calculates a perspective transform from four pairs of the corresponding points.
CV_EXPORTS_W void getRectSubPix (InputArray image, Size patchSize, Point2f center, OutputArray patch, int patchType=-1)
 Retrieves a pixel rectangle from an image with sub-pixel accuracy.
CV_EXPORTS_W void logPolar (InputArray src, OutputArray dst, Point2f center, double M, int flags)
 Remaps an image to log-polar space.
CV_EXPORTS_W void linearPolar (InputArray src, OutputArray dst, Point2f center, double maxRadius, int flags)
 Remaps an image to polar space.
CV_EXPORTS_W void integral (InputArray src, OutputArray sum, int sdepth=-1)
 CV_EXPORTS_AS (integral2) void integral(InputArray src
 CV_EXPORTS_AS (integral3) void integral(InputArray src
 Calculates the integral of an image.
CV_EXPORTS_W void accumulate (InputArray src, InputOutputArray dst, InputArray mask=noArray())
 Adds an image to the accumulator.
CV_EXPORTS_W void accumulateSquare (InputArray src, InputOutputArray dst, InputArray mask=noArray())
 Adds the square of a source image to the accumulator.
CV_EXPORTS_W void accumulateProduct (InputArray src1, InputArray src2, InputOutputArray dst, InputArray mask=noArray())
 Adds the per-element product of two input images to the accumulator.
CV_EXPORTS_W void accumulateWeighted (InputArray src, InputOutputArray dst, double alpha, InputArray mask=noArray())
 Updates a running average.
CV_EXPORTS_W Point2d phaseCorrelate (InputArray src1, InputArray src2, InputArray window=noArray(), CV_OUT double *response=0)
 The function is used to detect translational shifts that occur between two images.
CV_EXPORTS_W void createHanningWindow (OutputArray dst, Size winSize, int type)
 This function computes a Hanning window coefficients in two dimensions.
CV_EXPORTS_W double threshold (InputArray src, OutputArray dst, double thresh, double maxval, int type)
 Applies a fixed-level threshold to each array element.
CV_EXPORTS_W void adaptiveThreshold (InputArray src, OutputArray dst, double maxValue, int adaptiveMethod, int thresholdType, int blockSize, double C)
 Applies an adaptive threshold to an array.
CV_EXPORTS_W void pyrDown (InputArray src, OutputArray dst, const Size &dstsize=Size(), int borderType=BORDER_DEFAULT)
 Blurs an image and downsamples it.
CV_EXPORTS_W void pyrUp (InputArray src, OutputArray dst, const Size &dstsize=Size(), int borderType=BORDER_DEFAULT)
 Upsamples an image and then blurs it.
CV_EXPORTS void buildPyramid (InputArray src, OutputArrayOfArrays dst, int maxlevel, int borderType=BORDER_DEFAULT)
 Constructs the Gaussian pyramid for an image.
CV_EXPORTS_W void undistort (InputArray src, OutputArray dst, InputArray cameraMatrix, InputArray distCoeffs, InputArray newCameraMatrix=noArray())
 Transforms an image to compensate for lens distortion.
CV_EXPORTS_W void initUndistortRectifyMap (InputArray cameraMatrix, InputArray distCoeffs, InputArray R, InputArray newCameraMatrix, Size size, int m1type, OutputArray map1, OutputArray map2)
 Computes the undistortion and rectification transformation map.
CV_EXPORTS_W float initWideAngleProjMap (InputArray cameraMatrix, InputArray distCoeffs, Size imageSize, int destImageWidth, int m1type, OutputArray map1, OutputArray map2, int projType=PROJ_SPHERICAL_EQRECT, double alpha=0)
 initializes maps for cv::remap() for wide-angle
CV_EXPORTS_W Mat getDefaultNewCameraMatrix (InputArray cameraMatrix, Size imgsize=Size(), bool centerPrincipalPoint=false)
 Returns the default new camera matrix.
CV_EXPORTS_W void undistortPoints (InputArray src, OutputArray dst, InputArray cameraMatrix, InputArray distCoeffs, InputArray R=noArray(), InputArray P=noArray())
 Computes the ideal point coordinates from the observed point coordinates.
CV_EXPORTS void calcHist (const Mat *images, int nimages, const int *channels, InputArray mask, OutputArray hist, int dims, const int *histSize, const float **ranges, bool uniform=true, bool accumulate=false)
 Calculates a histogram of a set of arrays.
CV_EXPORTS void calcHist (const Mat *images, int nimages, const int *channels, InputArray mask, SparseMat &hist, int dims, const int *histSize, const float **ranges, bool uniform=true, bool accumulate=false)
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. this variant uses cv::SparseMat for output.
CV_EXPORTS_W void calcHist (InputArrayOfArrays images, const std::vector< int > &channels, InputArray mask, OutputArray hist, const std::vector< int > &histSize, const std::vector< float > &ranges, bool accumulate=false)
CV_EXPORTS void calcBackProject (const Mat *images, int nimages, const int *channels, InputArray hist, OutputArray backProject, const float **ranges, double scale=1, bool uniform=true)
 Calculates the back projection of a histogram.
CV_EXPORTS void calcBackProject (const Mat *images, int nimages, const int *channels, const SparseMat &hist, OutputArray backProject, const float **ranges, double scale=1, bool uniform=true)
CV_EXPORTS_W void calcBackProject (InputArrayOfArrays images, const std::vector< int > &channels, InputArray hist, OutputArray dst, const std::vector< float > &ranges, double scale)
CV_EXPORTS_W double compareHist (InputArray H1, InputArray H2, int method)
 Compares two histograms.
CV_EXPORTS double compareHist (const SparseMat &H1, const SparseMat &H2, int method)
CV_EXPORTS_W void equalizeHist (InputArray src, OutputArray dst)
 Equalizes the histogram of a grayscale image.
CV_EXPORTS float EMD (InputArray signature1, InputArray signature2, int distType, InputArray cost=noArray(), float *lowerBound=0, OutputArray flow=noArray())
 Computes the "minimal work" distance between two weighted point configurations.
CV_EXPORTS_W void watershed (InputArray image, InputOutputArray markers)
 Performs a marker-based image segmentation using the watershed algorithm.
CV_EXPORTS_W void pyrMeanShiftFiltering (InputArray src, OutputArray dst, double sp, double sr, int maxLevel=1, TermCriteria termcrit=TermCriteria(TermCriteria::MAX_ITER+TermCriteria::EPS, 5, 1))
 Performs initial step of meanshift segmentation of an image.
CV_EXPORTS_W void grabCut (InputArray img, InputOutputArray mask, Rect rect, InputOutputArray bgdModel, InputOutputArray fgdModel, int iterCount, int mode=GC_EVAL)
 Runs the GrabCut algorithm.
 CV_EXPORTS_AS (distanceTransformWithLabels) void distanceTransform(InputArray src
 Calculates the distance to the closest zero pixel for each pixel of the source image.
CV_EXPORTS_W void distanceTransform (InputArray src, OutputArray dst, int distanceType, int maskSize, int dstType=CV_32F)
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
CV_EXPORTS int floodFill (InputOutputArray image, Point seedPoint, Scalar newVal, CV_OUT Rect *rect=0, Scalar loDiff=Scalar(), Scalar upDiff=Scalar(), int flags=4)
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. variant without `mask` parameter.
CV_EXPORTS_W int floodFill (InputOutputArray image, InputOutputArray mask, Point seedPoint, Scalar newVal, CV_OUT Rect *rect=0, Scalar loDiff=Scalar(), Scalar upDiff=Scalar(), int flags=4)
 Fills a connected component with the given color.
CV_EXPORTS_W void cvtColor (InputArray src, OutputArray dst, int code, int dstCn=0)
 Converts an image from one color space to another.
CV_EXPORTS_W Moments moments (InputArray array, bool binaryImage=false)
 Calculates all of the moments up to the third order of a polygon or rasterized shape.
CV_EXPORTS void HuMoments (const Moments &moments, double hu[7])
 Calculates seven Hu invariants.
CV_EXPORTS_W void HuMoments (const Moments &m, OutputArray hu)
CV_EXPORTS_W void matchTemplate (InputArray image, InputArray templ, OutputArray result, int method, InputArray mask=noArray())
 Compares a template against overlapped image regions.
CV_EXPORTS_W int connectedComponents (InputArray image, OutputArray labels, int connectivity=8, int ltype=CV_32S)
 computes the connected components labeled image of boolean image
CV_EXPORTS_W int connectedComponentsWithStats (InputArray image, OutputArray labels, OutputArray stats, OutputArray centroids, int connectivity=8, int ltype=CV_32S)
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
CV_EXPORTS_W void findContours (InputOutputArray image, OutputArrayOfArrays contours, OutputArray hierarchy, int mode, int method, Point offset=Point())
 Finds contours in a binary image.
CV_EXPORTS void findContours (InputOutputArray image, OutputArrayOfArrays contours, int mode, int method, Point offset=Point())
CV_EXPORTS_W void approxPolyDP (InputArray curve, OutputArray approxCurve, double epsilon, bool closed)
 Approximates a polygonal curve(s) with the specified precision.
CV_EXPORTS_W double arcLength (InputArray curve, bool closed)
 Calculates a contour perimeter or a curve length.
CV_EXPORTS_W Rect boundingRect (InputArray points)
 Calculates the up-right bounding rectangle of a point set.
CV_EXPORTS_W double contourArea (InputArray contour, bool oriented=false)
 Calculates a contour area.
CV_EXPORTS_W RotatedRect minAreaRect (InputArray points)
 Finds a rotated rectangle of the minimum area enclosing the input 2D point set.
CV_EXPORTS_W void boxPoints (RotatedRect box, OutputArray points)
 Finds the four vertices of a rotated rect.
CV_EXPORTS_W void minEnclosingCircle (InputArray points, CV_OUT Point2f &center, CV_OUT float &radius)
 Finds a circle of the minimum area enclosing a 2D point set.
CV_EXPORTS_W double minEnclosingTriangle (InputArray points, CV_OUT OutputArray triangle)
 Finds a triangle of minimum area enclosing a 2D point set and returns its area.
CV_EXPORTS_W double matchShapes (InputArray contour1, InputArray contour2, int method, double parameter)
 Compares two shapes.
CV_EXPORTS_W float intersectConvexConvex (InputArray _p1, InputArray _p2, OutputArray _p12, bool handleNested=true)
 finds intersection of two convex polygons
CV_EXPORTS_W RotatedRect fitEllipse (InputArray points)
 Fits an ellipse around a set of 2D points.
CV_EXPORTS_W void fitLine (InputArray points, OutputArray line, int distType, double param, double reps, double aeps)
 Fits a line to a 2D or 3D point set.
CV_EXPORTS_W double pointPolygonTest (InputArray contour, Point2f pt, bool measureDist)
 Performs a point-in-contour test.
CV_EXPORTS Ptr
< GeneralizedHoughBallard
createGeneralizedHoughBallard ()
 Ballard, D.H.
CV_EXPORTS Ptr
< GeneralizedHoughGuil
createGeneralizedHoughGuil ()
 Guil, N., González-Linares, J.M.
CV_EXPORTS void blendLinear (InputArray src1, InputArray src2, InputArray weights1, InputArray weights2, OutputArray dst)
 Performs linear blending of two images.
CV_EXPORTS void rectangle (CV_IN_OUT Mat &img, Rect rec, const Scalar &color, int thickness=1, int lineType=LINE_8, int shift=0)
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. use `rec` parameter as alternative specification of the drawn rectangle: `r.tl() and r.br()-Point(1,1)` are opposite corners.
CV_EXPORTS_W void drawMarker (CV_IN_OUT Mat &img, Point position, const Scalar &color, int markerType=MARKER_CROSS, int markerSize=20, int thickness=1, int line_type=8)
 Draws a marker on a predefined position in an image.
CV_EXPORTS_W void fillConvexPoly (InputOutputArray img, InputArray points, const Scalar &color, int lineType=LINE_8, int shift=0)
 Fills a convex polygon.
CV_EXPORTS_W void fillPoly (InputOutputArray img, InputArrayOfArrays pts, const Scalar &color, int lineType=LINE_8, int shift=0, Point offset=Point())
 Fills the area bounded by one or more polygons.
CV_EXPORTS_W void polylines (InputOutputArray img, InputArrayOfArrays pts, bool isClosed, const Scalar &color, int thickness=1, int lineType=LINE_8, int shift=0)
 Draws several polygonal curves.
CV_EXPORTS_W void drawContours (InputOutputArray image, InputArrayOfArrays contours, int contourIdx, const Scalar &color, int thickness=1, int lineType=LINE_8, InputArray hierarchy=noArray(), int maxLevel=INT_MAX, Point offset=Point())
 Draws contours outlines or filled contours.
CV_EXPORTS bool clipLine (Size imgSize, CV_IN_OUT Point &pt1, CV_IN_OUT Point &pt2)
 Clips the line against the image rectangle.
CV_EXPORTS_W bool clipLine (Rect imgRect, CV_OUT CV_IN_OUT Point &pt1, CV_OUT CV_IN_OUT Point &pt2)
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
CV_EXPORTS_W void ellipse2Poly (Point center, Size axes, int angle, int arcStart, int arcEnd, int delta, CV_OUT std::vector< Point > &pts)
 Approximates an elliptic arc with a polyline.
CV_EXPORTS_W Size getTextSize (const String &text, int fontFace, double fontScale, int thickness, CV_OUT int *baseLine)
 Calculates the width and height of a text string.
void groupRectangles (std::vector< Rect > &rectList, int groupThreshold, double eps, std::vector< int > *weights, std::vector< double > *levelWeights)
void groupRectangles (std::vector< Rect > &rectList, int groupThreshold, double eps=0.2)
 Groups the object candidate rectangles.
void groupRectangles (std::vector< Rect > &rectList, std::vector< int > &rejectLevels, std::vector< double > &levelWeights, int groupThreshold, double eps)
void groupRectangles_meanshift (std::vector< Rect > &rectList, std::vector< double > &foundWeights, std::vector< double > &foundScales, double detectThreshold, Size winDetSize)
CV_EXPORTS_W void groupRectangles (CV_IN_OUT std::vector< Rect > &rectList, CV_OUT std::vector< int > &weights, int groupThreshold, double eps=0.2)
Init with value

Create new vector with elements set to a specific value

 OPENCV_HAL_IMPL_C_INIT_VAL (v_uint8x16, uchar, u8) OPENCV_HAL_IMPL_C_INIT_VAL(v_int8x16
s8 OPENCV_HAL_IMPL_C_INIT_VAL (v_uint16x8, ushort, u16) OPENCV_HAL_IMPL_C_INIT_VAL(v_int16x8
s8 s16 OPENCV_HAL_IMPL_C_INIT_VAL (v_uint32x4, unsigned, u32) OPENCV_HAL_IMPL_C_INIT_VAL(v_int32x4
s8 s16 s32 OPENCV_HAL_IMPL_C_INIT_VAL (v_float32x4, float, f32) OPENCV_HAL_IMPL_C_INIT_VAL(v_float64x2
s8 s16 s32 f64 OPENCV_HAL_IMPL_C_INIT_VAL (v_uint64x2, uint64, u64) OPENCV_HAL_IMPL_C_INIT_VAL(v_int64x2
Reinterpret

Convert vector to different type without modifying underlying data.

 OPENCV_HAL_IMPL_C_REINTERPRET (v_uint8x16, uchar, u8) OPENCV_HAL_IMPL_C_REINTERPRET(v_int8x16
s8 OPENCV_HAL_IMPL_C_REINTERPRET (v_uint16x8, ushort, u16) OPENCV_HAL_IMPL_C_REINTERPRET(v_int16x8
s8 s16 OPENCV_HAL_IMPL_C_REINTERPRET (v_uint32x4, unsigned, u32) OPENCV_HAL_IMPL_C_REINTERPRET(v_int32x4
s8 s16 s32 OPENCV_HAL_IMPL_C_REINTERPRET (v_float32x4, float, f32) OPENCV_HAL_IMPL_C_REINTERPRET(v_float64x2
s8 s16 s32 f64 OPENCV_HAL_IMPL_C_REINTERPRET (v_uint64x2, uint64, u64) OPENCV_HAL_IMPL_C_REINTERPRET(v_int64x2
Left shift

Shift left

 OPENCV_HAL_IMPL_C_SHIFTL (v_uint16x8, ushort) OPENCV_HAL_IMPL_C_SHIFTL(v_int16x8
short OPENCV_HAL_IMPL_C_SHIFTL (v_uint32x4, unsigned) OPENCV_HAL_IMPL_C_SHIFTL(v_int32x4
short int OPENCV_HAL_IMPL_C_SHIFTL (v_uint64x2, uint64) OPENCV_HAL_IMPL_C_SHIFTL(v_int64x2
Right shift

Shift right

 OPENCV_HAL_IMPL_C_SHIFTR (v_uint16x8, ushort) OPENCV_HAL_IMPL_C_SHIFTR(v_int16x8
short OPENCV_HAL_IMPL_C_SHIFTR (v_uint32x4, unsigned) OPENCV_HAL_IMPL_C_SHIFTR(v_int32x4
short int OPENCV_HAL_IMPL_C_SHIFTR (v_uint64x2, uint64) OPENCV_HAL_IMPL_C_SHIFTR(v_int64x2
Rounding shift

Rounding shift right

 OPENCV_HAL_IMPL_C_RSHIFTR (v_uint16x8, ushort) OPENCV_HAL_IMPL_C_RSHIFTR(v_int16x8
short OPENCV_HAL_IMPL_C_RSHIFTR (v_uint32x4, unsigned) OPENCV_HAL_IMPL_C_RSHIFTR(v_int32x4
short int OPENCV_HAL_IMPL_C_RSHIFTR (v_uint64x2, uint64) OPENCV_HAL_IMPL_C_RSHIFTR(v_int64x2
Pack with rounding shift

Pack values from two vectors to one with rounding shift

Values from the input vectors will be shifted right by _n_ bits with rounding, converted to narrower type and returned in the result vector. Variant with _u_ suffix converts to unsigned type.

  • pack: for 16-, 32- and 64-bit integer input types
  • pack_u: for 16- and 32-bit signed integer input types
 OPENCV_HAL_IMPL_C_RSHR_PACK (v_uint16x8, ushort, v_uint8x16, uchar, pack) OPENCV_HAL_IMPL_C_RSHR_PACK(v_int16x8
pack OPENCV_HAL_IMPL_C_RSHR_PACK (v_uint32x4, unsigned, v_uint16x8, ushort, pack) OPENCV_HAL_IMPL_C_RSHR_PACK(v_int32x4
pack pack OPENCV_HAL_IMPL_C_RSHR_PACK (v_uint64x2, uint64, v_uint32x4, unsigned, pack) OPENCV_HAL_IMPL_C_RSHR_PACK(v_int64x2
pack pack pack OPENCV_HAL_IMPL_C_RSHR_PACK (v_int16x8, short, v_uint8x16, uchar, pack_u) OPENCV_HAL_IMPL_C_RSHR_PACK(v_int32x4
Pack and store

Store values from the input vector into memory with pack

Values will be stored into memory with saturating conversion to narrower type. Variant with _u_ suffix converts to corresponding unsigned type.

  • pack: for 16-, 32- and 64-bit integer input types
  • pack_u: for 16- and 32-bit signed integer input types
 OPENCV_HAL_IMPL_C_PACK_STORE (v_uint16x8, ushort, v_uint8x16, uchar, pack) OPENCV_HAL_IMPL_C_PACK_STORE(v_int16x8
pack OPENCV_HAL_IMPL_C_PACK_STORE (v_uint32x4, unsigned, v_uint16x8, ushort, pack) OPENCV_HAL_IMPL_C_PACK_STORE(v_int32x4
pack pack OPENCV_HAL_IMPL_C_PACK_STORE (v_uint64x2, uint64, v_uint32x4, unsigned, pack) OPENCV_HAL_IMPL_C_PACK_STORE(v_int64x2
pack pack pack OPENCV_HAL_IMPL_C_PACK_STORE (v_int16x8, short, v_uint8x16, uchar, pack_u) OPENCV_HAL_IMPL_C_PACK_STORE(v_int32x4
Pack and store with rounding shift

Store values from the input vector into memory with pack

Values will be shifted _n_ bits right with rounding, converted to narrower type and stored into memory. Variant with _u_ suffix converts to unsigned type.

  • pack: for 16-, 32- and 64-bit integer input types
  • pack_u: for 16- and 32-bit signed integer input types
 OPENCV_HAL_IMPL_C_RSHR_PACK_STORE (v_uint16x8, ushort, v_uint8x16, uchar, pack) OPENCV_HAL_IMPL_C_RSHR_PACK_STORE(v_int16x8
pack OPENCV_HAL_IMPL_C_RSHR_PACK_STORE (v_uint32x4, unsigned, v_uint16x8, ushort, pack) OPENCV_HAL_IMPL_C_RSHR_PACK_STORE(v_int32x4
pack pack OPENCV_HAL_IMPL_C_RSHR_PACK_STORE (v_uint64x2, uint64, v_uint32x4, unsigned, pack) OPENCV_HAL_IMPL_C_RSHR_PACK_STORE(v_int64x2
pack pack pack OPENCV_HAL_IMPL_C_RSHR_PACK_STORE (v_int16x8, short, v_uint8x16, uchar, pack_u) OPENCV_HAL_IMPL_C_RSHR_PACK_STORE(v_int32x4

Pack

Pack values from two vectors to one

Return vector type have twice more elements than input vector types. Variant with _u_ suffix also converts to corresponding unsigned type.

  • pack: for 16-, 32- and 64-bit integer input types
  • pack_u: for 16- and 32-bit signed integer input types

typedef v_reg< schar, 16 > v_int8x16
 Sixteen 8-bit signed integer values.
typedef v_reg< ushort, 8 > v_uint16x8
 Eight 16-bit unsigned integer values.
typedef v_reg< short, 8 > v_int16x8
 Eight 16-bit signed integer values.
typedef v_reg< int, 4 > v_int32x4
 Four 32-bit signed integer values.
pack pack pack ushort
 OPENCV_HAL_IMPL_C_PACK (v_uint16x8, v_uint8x16, uchar, pack) OPENCV_HAL_IMPL_C_PACK(v_int16x8
pack OPENCV_HAL_IMPL_C_PACK (v_uint32x4, v_uint16x8, ushort, pack) OPENCV_HAL_IMPL_C_PACK(v_int32x4
pack pack OPENCV_HAL_IMPL_C_PACK (v_uint64x2, v_uint32x4, unsigned, pack) OPENCV_HAL_IMPL_C_PACK(v_int64x2
pack pack pack OPENCV_HAL_IMPL_C_PACK (v_int16x8, v_uint8x16, uchar, pack_u) OPENCV_HAL_IMPL_C_PACK(v_int32x4

Init with zero

Create new vector with zero elements


V_TypeTraits< _Tp >::abs_type
V_TypeTraits< _Tp >::abs_type
int 
int
 schar
s8 short
s8 s16 s32 double
s8 s16 s32 f64 int64
 OPENCV_HAL_IMPL_C_INIT_ZERO (v_uint8x16, uchar, u8) OPENCV_HAL_IMPL_C_INIT_ZERO(v_int8x16
s8 OPENCV_HAL_IMPL_C_INIT_ZERO (v_uint16x8, ushort, u16) OPENCV_HAL_IMPL_C_INIT_ZERO(v_int16x8
s8 s16 OPENCV_HAL_IMPL_C_INIT_ZERO (v_uint32x4, unsigned, u32) OPENCV_HAL_IMPL_C_INIT_ZERO(v_int32x4
s8 s16 s32 OPENCV_HAL_IMPL_C_INIT_ZERO (v_float32x4, float, f32) OPENCV_HAL_IMPL_C_INIT_ZERO(v_float64x2
s8 s16 s32 f64 OPENCV_HAL_IMPL_C_INIT_ZERO (v_uint64x2, uint64, u64) OPENCV_HAL_IMPL_C_INIT_ZERO(v_int64x2

Detailed Description

DefaultDeviceInitializer.


Enumeration Type Documentation

anonymous enum

type of the kernel

Definition at line 44 of file filterengine.hpp.


Function Documentation

cv::Ptr< cv::FilterEngine > createBoxFilter ( int  srcType,
int  dstType,
Size  ksize,
Point  anchor = Point(-1,-1),
bool  normalize = true,
int  borderType = BORDER_DEFAULT 
)

returns box filter engine

Definition at line 1287 of file smooth.cpp.

cv::Ptr< cv::FilterEngine > createDerivFilter ( int  srcType,
int  dstType,
int  dx,
int  dy,
int  ksize,
int  borderType = BORDER_DEFAULT 
)

returns filter engine for the generalized Sobel operator

Definition at line 173 of file deriv.cpp.

cv::Ptr< cv::FilterEngine > createGaussianFilter ( int  type,
Size  ksize,
double  sigma1,
double  sigma2 = 0,
int  borderType = BORDER_DEFAULT 
)

returns the Gaussian filter engine

Definition at line 1658 of file smooth.cpp.

cv::Ptr< cv::FilterEngine > createLinearFilter ( int  srcType,
int  dstType,
InputArray  kernel,
Point  _anchor = Point(-1,-1),
double  delta = 0,
int  rowBorderType = BORDER_DEFAULT,
int  columnBorderType = -1,
const Scalar &  borderValue = Scalar() 
)

returns the non-separable linear filter engine

Definition at line 4528 of file filter.cpp.

cv::Ptr< cv::FilterEngine > createMorphologyFilter ( int  op,
int  type,
InputArray  kernel,
Point  anchor = Point(-1,-1),
int  rowBorderType = BORDER_CONSTANT,
int  columnBorderType = -1,
const Scalar &  borderValue = morphologyDefaultBorderValue() 
)

returns morphological filter engine. Only MORPH_ERODE and MORPH_DILATE are supported.

Definition at line 984 of file morph.cpp.

cv::Ptr< cv::FilterEngine > createSeparableLinearFilter ( int  srcType,
int  dstType,
InputArray  rowKernel,
InputArray  columnKernel,
Point  anchor = Point(-1,-1),
double  delta = 0,
int  rowBorderType = BORDER_DEFAULT,
int  columnBorderType = -1,
const Scalar &  borderValue = Scalar() 
)

returns the separable linear filter engine

Definition at line 3774 of file filter.cpp.

cv::Ptr< cv::BaseColumnFilter > getColumnSumFilter ( int  sumType,
int  dstType,
int  ksize,
int  anchor = -1,
double  scale = 1 
)

returns vertical 1D box filter

Definition at line 1247 of file smooth.cpp.

int getKernelType ( InputArray  kernel,
Point  anchor 
)

returns type (one of KERNEL_*) of 1D or 2D kernel specified by its coefficients.

Definition at line 425 of file filter.cpp.

cv::Ptr< cv::BaseColumnFilter > getLinearColumnFilter ( int  bufType,
int  dstType,
InputArray  kernel,
int  anchor,
int  symmetryType,
double  delta = 0,
int  bits = 0 
)

returns the primitive column filter with the specified kernel

Definition at line 3677 of file filter.cpp.

cv::Ptr< cv::BaseFilter > getLinearFilter ( int  srcType,
int  dstType,
InputArray  kernel,
Point  anchor = Point(-1,-1),
double  delta = 0,
int  bits = 0 
)

returns 2D filter with the specified kernel

Definition at line 4450 of file filter.cpp.

cv::Ptr< cv::BaseRowFilter > getLinearRowFilter ( int  srcType,
int  bufType,
InputArray  kernel,
int  anchor,
int  symmetryType 
)

returns the primitive row filter with the specified kernel

Definition at line 3623 of file filter.cpp.

cv::Ptr< cv::BaseColumnFilter > getMorphologyColumnFilter ( int  op,
int  type,
int  ksize,
int  anchor = -1 
)

returns vertical 1D morphological filter

Definition at line 898 of file morph.cpp.

cv::Ptr< cv::BaseFilter > getMorphologyFilter ( int  op,
int  type,
InputArray  kernel,
Point  anchor = Point(-1,-1) 
)

returns 2D morphological filter

Definition at line 946 of file morph.cpp.

cv::Ptr< cv::BaseRowFilter > getMorphologyRowFilter ( int  op,
int  type,
int  ksize,
int  anchor = -1 
)

returns horizontal 1D morphological filter

Definition at line 851 of file morph.cpp.

cv::Ptr< cv::BaseRowFilter > getRowSumFilter ( int  srcType,
int  sumType,
int  ksize,
int  anchor = -1 
)

returns horizontal 1D box filter

Definition at line 1212 of file smooth.cpp.

static int initialize_simplex ( Mat_< double > &  c,
Mat_< double > &  b,
double &  v,
vector< int > &  N,
vector< int > &  B,
vector< unsigned int > &  indexToRow 
) [static]

Due to technical considerations, the format of input b and c is somewhat special: both b and c should be one column bigger than corresponding b and c of linear problem and the leftmost column will be used internally by this procedure - it should not be cleaned before the call to procedure and may contain mess after it also initializes N and B and does not make any assumptions about their init values.

Returns:
SOLVELP_UNFEASIBLE if problem is unfeasible, 0 if feasible.

Definition at line 143 of file lpsolver.cpp.

static int inner_simplex ( Mat_< double > &  c,
Mat_< double > &  b,
double &  v,
vector< int > &  N,
vector< int > &  B,
vector< unsigned int > &  indexToRow 
) [static]
Returns:
SOLVELP_UNBOUNDED means the problem is unbdd, SOLVELP_MULTI means multiple solutions, SOLVELP_SINGLE means one solution.

Definition at line 249 of file lpsolver.cpp.

static void cv::medianBlur_8u_O1 ( const Mat &  _src,
Mat &  _dst,
int  ksize 
) [static]

HOP is short for Histogram OPeration. This macro makes an operation op on histogram h for pixel value x. It takes care of handling both levels.

Definition at line 1889 of file smooth.cpp.