Canny Edge Question

A quick question; why does canny edge detection work better on grayscale images? It is stated everywhere that it works only for grayscale though i tried it for color images and it works on them too, only it detects too many false edges. What is the reason for that, it works on intensity and i believe intensity stays the same whether it is a color image or grayscale?

>>3
This is a stupid argument, is it okay to post about being retarded on /prog/ simply because it is possible to write a retarded AI?

If you want to talk about programming, go ahead, if you don't, fuck off.