By the way, I think I should give more details. The list of numbers I got is the centres of different subjects on the screent output by using cv.jit.blobs.centroids. Hence these points are showing on the screent simultaneously. I located the coordinates of these points and try to unpack them, but all I can get is only one of them. If I use [listfunnel] I can see each number (see the picture attached). So the problem is I dont know how to extract these numbers out for individual use.
Thanks, Hope this can make the question more clear
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