2 * GlobalHistogramBinarizer.h
5 * Created by Ralf Kistner on 16/10/2009.
6 * Copyright 2008 ZXing authors All rights reserved.
7 * Modified by Lukasz Warchol on 02/02/2010.
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.
22 #ifndef GLOBALHISTOGRAMBINARIZER_H_
23 #define GLOBALHISTOGRAMBINARIZER_H_
26 #include <zxing/Binarizer.h>
27 #include <zxing/common/BitArray.h>
28 #include <zxing/common/BitMatrix.h>
32 class GlobalHistogramBinarizer : public Binarizer {
34 Ref<BitMatrix> cached_matrix_;
35 Ref<BitArray> cached_row_;
39 GlobalHistogramBinarizer(Ref<LuminanceSource> source);
40 virtual ~GlobalHistogramBinarizer();
42 virtual Ref<BitArray> getBlackRow(int y, Ref<BitArray> row);
43 virtual Ref<BitMatrix> getBlackMatrix();
44 static int estimate(std::vector<int> &histogram);
45 Ref<Binarizer> createBinarizer(Ref<LuminanceSource> source);
50 #endif /* GLOBALHISTOGRAMBINARIZER_H_ */