Merged the trunk r8589:8653 - all changes related to build warnings
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@@ -55,12 +55,12 @@
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# endif
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#endif
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void icvGetQuadrangleHypotheses(CvSeq* contours, std::vector<std::pair<float, int> >& quads, int class_id)
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static void icvGetQuadrangleHypotheses(CvSeq* contours, std::vector<std::pair<float, int> >& quads, int class_id)
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{
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const float min_aspect_ratio = 0.3f;
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const float max_aspect_ratio = 3.0f;
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const float min_box_size = 10.0f;
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for(CvSeq* seq = contours; seq != NULL; seq = seq->h_next)
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{
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CvBox2D box = cvMinAreaRect2(seq);
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@@ -75,12 +75,12 @@ void icvGetQuadrangleHypotheses(CvSeq* contours, std::vector<std::pair<float, in
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{
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continue;
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}
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quads.push_back(std::pair<float, int>(box_size, class_id));
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}
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}
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void countClasses(const std::vector<std::pair<float, int> >& pairs, size_t idx1, size_t idx2, std::vector<int>& counts)
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static void countClasses(const std::vector<std::pair<float, int> >& pairs, size_t idx1, size_t idx2, std::vector<int>& counts)
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{
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counts.assign(2, 0);
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for(size_t i = idx1; i != idx2; i++)
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@@ -89,36 +89,36 @@ void countClasses(const std::vector<std::pair<float, int> >& pairs, size_t idx1,
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}
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}
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bool less_pred(const std::pair<float, int>& p1, const std::pair<float, int>& p2)
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inline bool less_pred(const std::pair<float, int>& p1, const std::pair<float, int>& p2)
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{
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return p1.first < p2.first;
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}
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// does a fast check if a chessboard is in the input image. This is a workaround to
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// does a fast check if a chessboard is in the input image. This is a workaround to
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// a problem of cvFindChessboardCorners being slow on images with no chessboard
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// - src: input image
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// - size: chessboard size
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// Returns 1 if a chessboard can be in this image and findChessboardCorners should be called,
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// Returns 1 if a chessboard can be in this image and findChessboardCorners should be called,
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// 0 if there is no chessboard, -1 in case of error
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int cvCheckChessboard(IplImage* src, CvSize size)
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{
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if(src->nChannels > 1)
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{
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cvError(CV_BadNumChannels, "cvCheckChessboard", "supports single-channel images only",
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cvError(CV_BadNumChannels, "cvCheckChessboard", "supports single-channel images only",
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__FILE__, __LINE__);
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}
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if(src->depth != 8)
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{
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cvError(CV_BadDepth, "cvCheckChessboard", "supports depth=8 images only",
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cvError(CV_BadDepth, "cvCheckChessboard", "supports depth=8 images only",
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__FILE__, __LINE__);
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}
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const int erosion_count = 1;
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const float black_level = 20.f;
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const float white_level = 130.f;
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const float black_white_gap = 70.f;
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#if defined(DEBUG_WINDOWS)
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cvNamedWindow("1", 1);
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cvShowImage("1", src);
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@@ -126,46 +126,46 @@ int cvCheckChessboard(IplImage* src, CvSize size)
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#endif //DEBUG_WINDOWS
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CvMemStorage* storage = cvCreateMemStorage();
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IplImage* white = cvCloneImage(src);
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IplImage* black = cvCloneImage(src);
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cvErode(white, white, NULL, erosion_count);
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cvDilate(black, black, NULL, erosion_count);
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IplImage* thresh = cvCreateImage(cvGetSize(src), IPL_DEPTH_8U, 1);
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int result = 0;
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for(float thresh_level = black_level; thresh_level < white_level && !result; thresh_level += 20.0f)
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{
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cvThreshold(white, thresh, thresh_level + black_white_gap, 255, CV_THRESH_BINARY);
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#if defined(DEBUG_WINDOWS)
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cvShowImage("1", thresh);
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cvWaitKey(0);
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#endif //DEBUG_WINDOWS
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CvSeq* first = 0;
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std::vector<std::pair<float, int> > quads;
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cvFindContours(thresh, storage, &first, sizeof(CvContour), CV_RETR_CCOMP);
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cvFindContours(thresh, storage, &first, sizeof(CvContour), CV_RETR_CCOMP);
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icvGetQuadrangleHypotheses(first, quads, 1);
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cvThreshold(black, thresh, thresh_level, 255, CV_THRESH_BINARY_INV);
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#if defined(DEBUG_WINDOWS)
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cvShowImage("1", thresh);
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cvWaitKey(0);
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#endif //DEBUG_WINDOWS
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cvFindContours(thresh, storage, &first, sizeof(CvContour), CV_RETR_CCOMP);
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icvGetQuadrangleHypotheses(first, quads, 0);
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const size_t min_quads_count = size.width*size.height/2;
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std::sort(quads.begin(), quads.end(), less_pred);
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// now check if there are many hypotheses with similar sizes
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// do this by floodfill-style algorithm
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const float size_rel_dev = 0.4f;
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for(size_t i = 0; i < quads.size(); i++)
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{
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size_t j = i + 1;
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@@ -176,7 +176,7 @@ int cvCheckChessboard(IplImage* src, CvSize size)
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break;
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}
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}
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if(j + 1 > min_quads_count + i)
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{
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// check the number of black and white squares
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@@ -194,12 +194,12 @@ int cvCheckChessboard(IplImage* src, CvSize size)
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}
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}
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}
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cvReleaseImage(&thresh);
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cvReleaseImage(&white);
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cvReleaseImage(&black);
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cvReleaseMemStorage(&storage);
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return result;
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}
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