Osamu Nakamura / GR-PEACH_mbed-os-client-ZXingSample

zxing_lib/zxing/common/HybridBinarizer.h@0:2f8d4a574b4e, 2018-01-12 (annotated)

Committer:
Osamu Nakamura
Date:
Fri Jan 12 15:41:00 2018 +0900
Revision:
0:2f8d4a574b4e
Initial commit

Who changed what in which revision?

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Osamu Nakamura 0:2f8d4a574b4e 1 // -*- mode:c++; tab-width:2; indent-tabs-mode:nil; c-basic-offset:2 -*-
Osamu Nakamura 0:2f8d4a574b4e 2 #ifndef __HYBRIDBINARIZER_H__
Osamu Nakamura 0:2f8d4a574b4e 3 #define __HYBRIDBINARIZER_H__
Osamu Nakamura 0:2f8d4a574b4e 4 /*
Osamu Nakamura 0:2f8d4a574b4e 5 * HybridBinarizer.h
Osamu Nakamura 0:2f8d4a574b4e 6 * zxing
Osamu Nakamura 0:2f8d4a574b4e 7 *
Osamu Nakamura 0:2f8d4a574b4e 8 * Copyright 2010 ZXing authors All rights reserved.
Osamu Nakamura 0:2f8d4a574b4e 9 *
Osamu Nakamura 0:2f8d4a574b4e 10 * Licensed under the Apache License, Version 2.0 (the "License");
Osamu Nakamura 0:2f8d4a574b4e 11 * you may not use this file except in compliance with the License.
Osamu Nakamura 0:2f8d4a574b4e 12 * You may obtain a copy of the License at
Osamu Nakamura 0:2f8d4a574b4e 13 *
Osamu Nakamura 0:2f8d4a574b4e 14 * http://www.apache.org/licenses/LICENSE-2.0
Osamu Nakamura 0:2f8d4a574b4e 15 *
Osamu Nakamura 0:2f8d4a574b4e 16 * Unless required by applicable law or agreed to in writing, software
Osamu Nakamura 0:2f8d4a574b4e 17 * distributed under the License is distributed on an "AS IS" BASIS,
Osamu Nakamura 0:2f8d4a574b4e 18 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
Osamu Nakamura 0:2f8d4a574b4e 19 * See the License for the specific language governing permissions and
Osamu Nakamura 0:2f8d4a574b4e 20 * limitations under the License.
Osamu Nakamura 0:2f8d4a574b4e 21 */
Osamu Nakamura 0:2f8d4a574b4e 22
Osamu Nakamura 0:2f8d4a574b4e 23 #include <vector>
Osamu Nakamura 0:2f8d4a574b4e 24 #include <zxing/Binarizer.h>
Osamu Nakamura 0:2f8d4a574b4e 25 #include <zxing/common/GlobalHistogramBinarizer.h>
Osamu Nakamura 0:2f8d4a574b4e 26 #include <zxing/common/BitArray.h>
Osamu Nakamura 0:2f8d4a574b4e 27 #include <zxing/common/BitMatrix.h>
Osamu Nakamura 0:2f8d4a574b4e 28
Osamu Nakamura 0:2f8d4a574b4e 29 namespace zxing {
Osamu Nakamura 0:2f8d4a574b4e 30
Osamu Nakamura 0:2f8d4a574b4e 31 class HybridBinarizer : public GlobalHistogramBinarizer {
Osamu Nakamura 0:2f8d4a574b4e 32 private:
Osamu Nakamura 0:2f8d4a574b4e 33 Ref<BitMatrix> matrix_;
Osamu Nakamura 0:2f8d4a574b4e 34 Ref<BitArray> cached_row_;
Osamu Nakamura 0:2f8d4a574b4e 35
Osamu Nakamura 0:2f8d4a574b4e 36 public:
Osamu Nakamura 0:2f8d4a574b4e 37 HybridBinarizer(Ref<LuminanceSource> source);
Osamu Nakamura 0:2f8d4a574b4e 38 virtual ~HybridBinarizer();
Osamu Nakamura 0:2f8d4a574b4e 39
Osamu Nakamura 0:2f8d4a574b4e 40 virtual Ref<BitMatrix> getBlackMatrix();
Osamu Nakamura 0:2f8d4a574b4e 41 Ref<Binarizer> createBinarizer(Ref<LuminanceSource> source);
Osamu Nakamura 0:2f8d4a574b4e 42 private:
Osamu Nakamura 0:2f8d4a574b4e 43 // We'll be using one-D arrays because C++ can't dynamically allocate 2D
Osamu Nakamura 0:2f8d4a574b4e 44 // arrays
Osamu Nakamura 0:2f8d4a574b4e 45 ArrayRef<int> calculateBlackPoints(ArrayRef<char> luminances,
Osamu Nakamura 0:2f8d4a574b4e 46 int subWidth,
Osamu Nakamura 0:2f8d4a574b4e 47 int subHeight,
Osamu Nakamura 0:2f8d4a574b4e 48 int width,
Osamu Nakamura 0:2f8d4a574b4e 49 int height);
Osamu Nakamura 0:2f8d4a574b4e 50 void calculateThresholdForBlock(ArrayRef<char> luminances,
Osamu Nakamura 0:2f8d4a574b4e 51 int subWidth,
Osamu Nakamura 0:2f8d4a574b4e 52 int subHeight,
Osamu Nakamura 0:2f8d4a574b4e 53 int width,
Osamu Nakamura 0:2f8d4a574b4e 54 int height,
Osamu Nakamura 0:2f8d4a574b4e 55 ArrayRef<int> blackPoints,
Osamu Nakamura 0:2f8d4a574b4e 56 Ref<BitMatrix> const& matrix);
Osamu Nakamura 0:2f8d4a574b4e 57 void thresholdBlock(ArrayRef<char>luminances,
Osamu Nakamura 0:2f8d4a574b4e 58 int xoffset,
Osamu Nakamura 0:2f8d4a574b4e 59 int yoffset,
Osamu Nakamura 0:2f8d4a574b4e 60 int threshold,
Osamu Nakamura 0:2f8d4a574b4e 61 int stride,
Osamu Nakamura 0:2f8d4a574b4e 62 Ref<BitMatrix> const& matrix);
Osamu Nakamura 0:2f8d4a574b4e 63 };
Osamu Nakamura 0:2f8d4a574b4e 64
Osamu Nakamura 0:2f8d4a574b4e 65 }
Osamu Nakamura 0:2f8d4a574b4e 66
Osamu Nakamura 0:2f8d4a574b4e 67 #endif