horne++at++vislab.su.edu.au
Thu, 25 May 1995 11:44:43 +1000 (EDT)
> I would like to know if anybody has ever converted HCV colors
> to RGB colors. Presummably I need to have a "Base Color" to be able
> to perform the conversion but I don't have any; I just have HCV values
> which I would like to convert to RGB values. I would appreciate having
> a piece of code that does that.
If you mean converting HSV (Hue, Sat, Val) to RGB then there are
tools to do this in /usr/people/4Dgifts
the function is hsv_to_rgb(hh,ss,vv,&r,&g,&b);
and it is part of /usr/include/libgutil.a
other functions in the library are:
irgb_to_rgb(ir,ig,ib,r,g,b);
cmy_to_rgb(c,m,y,r,g,b);
hls_to_rgb(h,l,s,r,g,b);
hsv_to_rgb(h,s,v,r,g,b);
hsb_to_rgb(h,s,v,r,g,b);
yiq_to_rgb(y,i,q,r,g,b);
rgb_to_cmy(r,g,b,c,m,y);
rgb_to_irgb(r,g,b,ir,ig,ib);
rgb_to_hls(r,g,b,h,l,s);
rgb_to_hsv(r,g,b,lh,ls,lv);
rgb_to_hsb(r,g,b,lh,ls,lv);
rgb_to_yiq(r,g,b,y,i,q);
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Geoff Horne http://www.usyd.edu.au/~ghorne
Computational Scientist and VisLab conundrum rectifier
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"Don't take life too seriously, you don't get out of it alive anyway"
Burt Ward
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