1 #ifndef __GLOBALHISTOGRAMBINARIZER_H__
2 #define __GLOBALHISTOGRAMBINARIZER_H__
4 * GlobalHistogramBinarizer.h
7 * Copyright 2010 ZXing authors All rights reserved.
9 * Licensed under the Apache License, Version 2.0 (the "License");
10 * you may not use this file except in compliance with the License.
11 * You may obtain a copy of the License at
13 * http://www.apache.org/licenses/LICENSE-2.0
15 * Unless required by applicable law or agreed to in writing, software
16 * distributed under the License is distributed on an "AS IS" BASIS,
17 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
18 * See the License for the specific language governing permissions and
19 * limitations under the License.
23 #include <zxing/Binarizer.h>
24 #include <zxing/common/BitArray.h>
25 #include <zxing/common/BitMatrix.h>
29 class GlobalHistogramBinarizer : public Binarizer {
31 Ref<BitMatrix> cached_matrix_;
32 Ref<BitArray> cached_row_;
36 GlobalHistogramBinarizer(Ref<LuminanceSource> source);
37 virtual ~GlobalHistogramBinarizer();
39 virtual Ref<BitArray> getBlackRow(int y, Ref<BitArray> row);
40 virtual Ref<BitMatrix> getBlackMatrix();
41 static int estimate(std::vector<int> &histogram);
42 Ref<Binarizer> createBinarizer(Ref<LuminanceSource> source);
47 #endif /* GLOBALHISTOGRAMBINARIZER_H_ */