[OT] a good color distance function

[BCS]

Hello Justin,

> Can anyone please suggest a decent algorithm for
> determining a "color distance" metric between
> two colors?  The requirement is to come up with
> a good algorithm for contrasting a computed color
> from another color.

I'd work in HSV. convert the hue channel to an absolute difference and then 
combine with a weighted sum. You might also take a look at some graphics 
design ideas about the color wheel (e.g. make the f(H) have peeks for complementary 
colors) and you could have some fun with a crowd sourced fitness function 
driving a GA to get the tuning factors right.

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... <IXOYE><