I am looking at opencv functions. Could you please tell me how to do hit and miss transform - http://homepages.inf.ed.ac.uk/rbf/HIP...
It appears I can create my structuring element. However, I can only do erode, dilate, open, close, tophat, blackhat, gradient.
Given my own structuring element, how do I (use opencv to efficiently ) perform hitandmiss? Thanks T
This is could be useful: http://opencv-code.com/tutorials/hit-... However, to avoid the glitch presented in this post, I'd suggest the following modified function:
void hitmiss(cv::Mat& src, cv::Mat& dst, cv::Mat& kernel)
{
CV_Assert(src.type() == CV_8U && src.channels() == 1);
cv::Mat k1 = (kernel == 1) / 255;
cv::Mat k2 = (kernel == -1) / 255;
cv::normalize(src, src, 0, 1, cv::NORM_MINMAX);
cv::Mat e1, e2;
cv::erode(src, e1, k1, cv::Point(-1, -1), 1, cv::BORDER_CONSTANT, cv::Scalar(0));
cv::erode(1-src, e2, k2, cv::Point(-1, -1), 1, cv::BORDER_CONSTANT, cv::Scalar(0));
if (countNonZero(k2) <= 0){
e2 = src;
}
dst = e1 & e2;
}You can always add credit when submitting the PR or by adding a link to the tutorial in the header, that is used to generate the docs!
Thank you for submitting this functionality!
@LorenaGdL In open cv all morphology operation is inverted. We should use dilate instead of erode, and or operator instead of and (&).
Asked: Oct 10 '15
Seen: 3,217 times
Last updated: Oct 10 '15
@Terry thanks for the link. you can post it as an answer here.