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fix FindContours default offset for CV_LINK_RUNS method

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This commit is contained in:
sergeybe 2018-02-02 16:46:05 +03:00
parent 83761d5f8e
commit 2266a8c85f
1 changed files with 12 additions and 3 deletions
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15
modules/imgproc/src/contours.cpp
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@ -1893,14 +1893,23 @@ void cv::findContours( InputOutputArray _image, OutputArrayOfArrays _contours,
CV_Assert(_contours.empty() || (_contours.channels() == 2 && _contours.depth() == CV_32S));
Mat image;
copyMakeBorder(_image, image, 1, 1, 1, 1, BORDER_CONSTANT | BORDER_ISOLATED, Scalar(0));
Mat image0 = _image.getMat(), image;
Point offset0(0, 0);
if(method != CV_LINK_RUNS)
{
offset0 = Point(-1, -1);
copyMakeBorder(image0, image, 1, 1, 1, 1, BORDER_CONSTANT | BORDER_ISOLATED, Scalar(0));
}
else
{
image = image0;
}
MemStorage storage(cvCreateMemStorage());
CvMat _cimage = image;
CvSeq* _ccontours = 0;
if( _hierarchy.needed() )
_hierarchy.clear();
cvFindContours_Impl(&_cimage, storage, &_ccontours, sizeof(CvContour), mode, method, offset + Point(-1, -1), 0);
cvFindContours_Impl(&_cimage, storage, &_ccontours, sizeof(CvContour), mode, method, offset + offset0, 0);
if( !_ccontours )
{
_contours.clear();