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Contents
#ifndef __HYBRIDBINARIZER_H__
#define __HYBRIDBINARIZER_H__
/*
* HybridBinarizer.h
* zxing
*
* Copyright 2010 ZXing authors All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <vector>
#include <zxing/Binarizer.h>
#include <zxing/common/GlobalHistogramBinarizer.h>
#include <zxing/common/BitArray.h>
#include <zxing/common/BitMatrix.h>
namespace zxing {
class HybridBinarizer : public GlobalHistogramBinarizer {
private:
Ref<BitMatrix> cached_matrix_;
Ref<BitArray> cached_row_;
int cached_row_num_;
public:
HybridBinarizer(Ref<LuminanceSource> source);
virtual ~HybridBinarizer();
virtual Ref<BitMatrix> getBlackMatrix();
Ref<Binarizer> createBinarizer(Ref<LuminanceSource> source);
private:
void binarizeEntireImage();
// We'll be using one-D arrays because C++ can't dynamically allocate 2D arrays
int* calculateBlackPoints(unsigned char* luminances, int subWidth, int subHeight,
int width, int height);
void calculateThresholdForBlock(unsigned char* luminances, int subWidth, int subHeight,
int width, int height, int blackPoints[], Ref<BitMatrix> matrix);
void threshold8x8Block(unsigned char* luminances, int xoffset, int yoffset, int threshold,
int stride, Ref<BitMatrix> matrix);
};
}
#endif /* GLOBALHISTOGRAMBINARIZER_H_ */
Version data entries
5 entries across 5 versions & 1 rubygems