I have expanded on the excellent answer from Ann Zen. There are two variables that you will have to tweak: threshold : contours with an area ... ... <看更多>

Contours · For better accuracy, use binary images. So before finding contours, apply threshold or canny edge detection. · In OpenCV, finding contours is like ... ... <看更多>

... (for large .svs files) I've written in python+opencv. Would this work? What would be the best way to load the contours? Cheers, Ed. ... <看更多>

If you are not worried about the speed or exact contour of hand, below is a simple solution. The method is like this : You take each contour and find ... ... <看更多>