[comp.graphics] looking for rgb <-> hsv converter code

rlh2@ukc.ac.uk (Richard Hesketh) (09/30/89)

I got some code from comp.windows.x the other week for doing rgb to hue
saturation and value conversions.  So I encorporated it into a small rgb
palette editor .. so that you can see the relationship between
rgb and hsv interactively.  However the code produces inconsistent results.
Which makes it difficult to use for a direct manipulation user interface
where the user can change either rgb or hsv values via sliders and watch
the corresponding sliders change.

So has anybody got any code that does rgb to hsv and hsv to rgb value
conversion, preferably in C although I'm willing to take Fortran 8-).

Thanks in advance,
	Richard

Richard Hesketh   :   rlh2@ukc.ac.uk    ..!mcvax!ukc!rlh2
		  :   @nsfnet-relay.ac.uk:rlh2@ukc.ac.uk
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