Automatic calculation of low and high thresholds for the Canny operation in opencv

Question

In openCV, the low and high thresholds for the canny operator are mandatory:

cvCanny(input,output,thresh1,thresh2)

In Matlab, there\'s an o

Answer 1

Also, there is code available to do this automatically, by putting this in the OpenCV build. I found it on the OpenCV-users mailing list, so no guarantees. :)

Discussion: http://opencv-users.1802565.n2.nabble.com/Automatic-thresholding-in-cvCanny-td5871024.html GitHub (code): https://gist.github.com/756833