C++ port: minor code and comment cleanups all over the place
[zxing.git] / cpp / core / src / zxing / common / GlobalHistogramBinarizer.h
1 /*
2  *  GlobalHistogramBinarizer.h
3  *  zxing
4  *
5  *  Copyright 2010 ZXing authors All rights reserved.
6  *
7  * Licensed under the Apache License, Version 2.0 (the "License");
8  * you may not use this file except in compliance with the License.
9  * You may obtain a copy of the License at
10  *
11  *      http://www.apache.org/licenses/LICENSE-2.0
12  *
13  * Unless required by applicable law or agreed to in writing, software
14  * distributed under the License is distributed on an "AS IS" BASIS,
15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16  * See the License for the specific language governing permissions and
17  * limitations under the License.
18  */
19
20 #ifndef GLOBALHISTOGRAMBINARIZER_H_
21 #define GLOBALHISTOGRAMBINARIZER_H_
22
23 #include <vector>
24 #include <zxing/Binarizer.h>
25 #include <zxing/common/BitArray.h>
26 #include <zxing/common/BitMatrix.h>
27
28 namespace zxing {
29         
30         class GlobalHistogramBinarizer : public Binarizer {
31          private:
32     Ref<BitMatrix> cached_matrix_;
33           Ref<BitArray> cached_row_;
34           int cached_row_num_;
35
36         public:
37                 GlobalHistogramBinarizer(Ref<LuminanceSource> source);
38                 virtual ~GlobalHistogramBinarizer();
39                 
40                 virtual Ref<BitArray> getBlackRow(int y, Ref<BitArray> row);
41                 virtual Ref<BitMatrix> getBlackMatrix();
42                 static int estimate(std::vector<int> &histogram);
43                 Ref<Binarizer> createBinarizer(Ref<LuminanceSource> source);
44         };
45         
46 }
47
48 #endif /* GLOBALHISTOGRAMBINARIZER_H_ */