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Intel IPP Asynchronous C/C++ Converters
Functions

Intel IPP Asynchronous C/C++ Converters
[Core functionality]

This section describes conversion between OpenCV and [Intel® IPP Asynchronous C/C++](http://software.intel.com/en-us/intel-ipp-preview) library. More...

Functions

int toHppType (const int cvType)
 convert OpenCV data type to hppDataType
int toCvType (const int hppType)
 convert hppDataType to OpenCV data type
void copyHppToMat (hppiMatrix *src, Mat &dst, hppAccel accel, int cn)
 Convert hppiMatrix to Mat.
Mat getMat (hppiMatrix *src, hppAccel accel, int cn)
 Create Mat from hppiMatrix.
hppiMatrix * getHpp (const Mat &src, hppAccel accel)
 Create hppiMatrix from Mat.

Detailed Description

This section describes conversion between OpenCV and [Intel® IPP Asynchronous C/C++](http://software.intel.com/en-us/intel-ipp-preview) library.

[Getting Started Guide](http://registrationcenter.intel.com/irc_nas/3727/ipp_async_get_started.htm) help you to install the library, configure header and library build paths.

Function Documentation

void cv::hpp::copyHppToMat ( hppiMatrix *  src,
Mat &  dst,
hppAccel  accel,
int  cn 
)

Convert hppiMatrix to Mat.

This function allocates and initializes new matrix (if needed) that has the same size and type as input matrix. Supports CV_8U, CV_16U, CV_16S, CV_32S, CV_32F, CV_64F.

Parameters:
srcinput hppiMatrix.
dstoutput matrix.
accelaccelerator instance (see hpp::getHpp for the list of acceleration framework types).
cnnumber of channels.

Definition at line 104 of file ippasync.hpp.

hppiMatrix* cv::hpp::getHpp ( const Mat &  src,
hppAccel  accel 
)

Create hppiMatrix from Mat.

This function allocates and initializes the hppiMatrix that has the same size and type as input matrix, returns the hppiMatrix*.

If you want to use zero-copy for GPU you should to have 4KB aligned matrix data. See details [hppiCreateSharedMatrix](http://software.intel.com/ru-ru/node/501697).

Supports CV_8U, CV_16U, CV_16S, CV_32S, CV_32F, CV_64F.

Note:
The hppiMatrix pointer to the image buffer in system memory refers to the src.data. Control the lifetime of the matrix and don't change its data, if there is no special need.
Parameters:
srcinput matrix.
accelaccelerator instance. Supports type:

  • **HPP_ACCEL_TYPE_CPU** - accelerated by optimized CPU instructions.
  • **HPP_ACCEL_TYPE_GPU** - accelerated by GPU programmable units or fixed-function accelerators.
  • **HPP_ACCEL_TYPE_ANY** - any acceleration or no acceleration available.
See also:
howToUseIPPAconversion, hpp::getMat

Definition at line 168 of file ippasync.hpp.

Mat cv::hpp::getMat ( hppiMatrix *  src,
hppAccel  accel,
int  cn 
)

Create Mat from hppiMatrix.

This function allocates and initializes the Mat that has the same size and type as input matrix. Supports CV_8U, CV_16U, CV_16S, CV_32S, CV_32F, CV_64F.

Parameters:
srcinput hppiMatrix.
accelaccelerator instance (see hpp::getHpp for the list of acceleration framework types).
cnnumber of channels.
See also:
howToUseIPPAconversion, hpp::copyHppToMat, hpp::getHpp.

Definition at line 141 of file ippasync.hpp.

int cv::hpp::toCvType ( const int  hppType )

convert hppDataType to OpenCV data type

Definition at line 83 of file ippasync.hpp.

int cv::hpp::toHppType ( const int  cvType )

convert OpenCV data type to hppDataType

Definition at line 69 of file ippasync.hpp.

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