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findContours: integrate workaroung to allow contours detection on image border

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This commit is contained in:
Vladislav Sovrasov 2016-10-18 14:16:14 +03:00
parent 2038434c7e
commit 1f4f50b9dc
1 changed files with 3 additions and 2 deletions
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5
modules/imgproc/src/contours.cpp
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@ -1878,13 +1878,14 @@ void cv::findContours( InputOutputArray _image, OutputArrayOfArrays _contours,
CV_Assert(_contours.empty() || (_contours.channels() == 2 && _contours.depth() == CV_32S));
Mat image = _image.getMat();
Mat image;
copyMakeBorder(_image, image, 1, 1, 1, 1, BORDER_CONSTANT, Scalar(0));
MemStorage storage(cvCreateMemStorage());
CvMat _cimage = image;
CvSeq* _ccontours = 0;
if( _hierarchy.needed() )
_hierarchy.clear();
cvFindContours(&_cimage, storage, &_ccontours, sizeof(CvContour), mode, method, offset);
cvFindContours(&_cimage, storage, &_ccontours, sizeof(CvContour), mode, method, offset + Point(-1, -1));
if( !_ccontours )
{
_contours.clear();