1 #ifndef __FINDER_PATTERN_FINDER_H__
2 #define __FINDER_PATTERN_FINDER_H__
5 * FinderPatternFinder.h
8 * Copyright 2010 ZXing authors All rights reserved.
10 * Licensed under the Apache License, Version 2.0 (the "License");
11 * you may not use this file except in compliance with the License.
12 * You may obtain a copy of the License at
14 * http://www.apache.org/licenses/LICENSE-2.0
16 * Unless required by applicable law or agreed to in writing, software
17 * distributed under the License is distributed on an "AS IS" BASIS,
18 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
19 * See the License for the specific language governing permissions and
20 * limitations under the License.
23 #include <zxing/qrcode/detector/FinderPattern.h>
24 #include <zxing/qrcode/detector/FinderPatternInfo.h>
25 #include <zxing/common/Counted.h>
26 #include <zxing/common/BitMatrix.h>
35 class FinderPatternFinder {
37 static int CENTER_QUORUM;
39 static int MAX_MODULES;
41 Ref<BitMatrix> image_;
42 std::vector<Ref<FinderPattern> > possibleCenters_;
45 /** stateCount must be int[5] */
46 static float centerFromEnd(int* stateCount, int end);
47 static bool foundPatternCross(int* stateCount);
49 float crossCheckVertical(size_t startI, size_t centerJ, int maxCount, int originalStateCountTotal);
50 float crossCheckHorizontal(size_t startJ, size_t centerI, int maxCount, int originalStateCountTotal);
52 /** stateCount must be int[5] */
53 bool handlePossibleCenter(int* stateCount, size_t i, size_t j);
55 bool haveMultiplyConfirmedCenters();
56 std::vector<Ref<FinderPattern> > selectBestPatterns();
57 static std::vector<Ref<FinderPattern> > orderBestPatterns(std::vector<Ref<FinderPattern> > patterns);
60 static float distance(Ref<ResultPoint> p1, Ref<ResultPoint> p2);
61 FinderPatternFinder(Ref<BitMatrix> image);
62 Ref<FinderPatternInfo> find(DecodeHints const& hints);
67 #endif // __FINDER_PATTERN_FINDER_H__