// Copyright 2014 PDFium Authors. All rights reserved. | |
// Use of this source code is governed by a BSD-style license that can be | |
// found in the LICENSE file. | |
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com | |
#ifndef _BC_GLOBALHISTOGRAMBINARIZER_H_ | |
#define _BC_GLOBALHISTOGRAMBINARIZER_H_ | |
class CBC_CommonBinarizer; | |
class CBC_CommonBitArray; | |
class CBC_CommonBitMatrix; | |
class CBC_LuminanceSource; | |
class CBC_GlobalHistogramBinarizer; | |
class CBC_GlobalHistogramBinarizer : public CBC_Binarizer { | |
public: | |
CBC_GlobalHistogramBinarizer(CBC_LuminanceSource* source); | |
virtual ~CBC_GlobalHistogramBinarizer(); | |
void InitArrays(int32_t luminanceSize); | |
CBC_CommonBitMatrix* GetBlackMatrix(int32_t& e); | |
CBC_CommonBitArray* GetBlackRow(int32_t y, | |
CBC_CommonBitArray* row, | |
int32_t& e); | |
static int32_t EstimateBlackPoint(CFX_Int32Array& buckets, int32_t& e); | |
private: | |
CFX_ByteArray m_luminance; | |
CFX_Int32Array m_buckets; | |
}; | |
#endif |