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1 // Copyright 2014 PDFium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com | |
6 | |
7 #ifndef _BC_GLOBALHISTOGRAMBINARIZER_H_ | |
8 #define _BC_GLOBALHISTOGRAMBINARIZER_H_ | |
9 class CBC_CommonBinarizer; | |
10 class CBC_CommonBitArray; | |
11 class CBC_CommonBitMatrix; | |
12 class CBC_LuminanceSource; | |
13 class CBC_GlobalHistogramBinarizer; | |
14 class CBC_GlobalHistogramBinarizer : public CBC_Binarizer | |
15 { | |
16 public: | |
17 CBC_GlobalHistogramBinarizer(CBC_LuminanceSource *source); | |
18 virtual ~CBC_GlobalHistogramBinarizer(); | |
19 | |
20 void InitArrays(FX_INT32 luminanceSize); | |
21 CBC_CommonBitMatrix *GetBlackMatrix(FX_INT32 &e); | |
22 CBC_CommonBitArray *GetBlackRow(FX_INT32 y, CBC_CommonBitArray *row, FX_INT3
2 &e); | |
23 static FX_INT32 EstimateBlackPoint(CFX_Int32Array &buckets, FX_INT32 &e); | |
24 private: | |
25 CFX_ByteArray m_luminance; | |
26 CFX_Int32Array m_buckets; | |
27 }; | |
28 #endif | |
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