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to find the threshold of a colour in VC++

hello...

Am doing a project on image processing, and using CANNY's edge detection algorithm to detect the edge of an activity centre in a FMRI image of the human brain.

Can someone pls tell me how to find the threshold of a colour so that i can specify it in the CANNY's algorithm to detect the edge of the area filled wit a particular colour?
Feb 28 '07 #1
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