| // 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 |