Editing hsl2rgb - FilterMeisterWiki

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= hsl2rgb =
== Syntax ==
:{{int hsl2rgb (int h, int s, int l, int z)}}
== Arguments ==
:'''h'''
::Hue value
:'''s'''
::Saturation value
:'''l'''
::Lightness value
:'''z'''
::Determines which value is returned. z=0 for Red, z=1 for Green, z=2 for Blue
== Return ==
:Returns the red, green or blue value from 0 to 255 depending on the value of z
== Description ==
:Lets you convert HSL values to RGB values.
== Example ==
<code>
%ffp

ctl(0):"Adjust H",Range=(-255,255),val=0
ctl(1):"Adjust S",Range=(-255,255),val=0
ctl(2):"Adjust L",Range=(-255,255),val=0

ForEveryTile:{
	int r,g,b,h,s,l;

for (y= y_start; y < y_end; y++){
			if(updateProgress(y,y_end)) abort();
		for (x = x_start; x < x_end; x++){
				
			r = src(x,y,0);
			g = src(x,y,1);
			b = src(x,y,2);

h = rgb2hsl (r,g,b,0);
			s = rgb2hsl (r,g,b,1); 
			l = rgb2hsl (r,g,b,2); 
			
			//Do the HSL adjustment
			h = h + ctl(0);
			s = s + ctl(1);
			l = l + ctl(2);

pset( x, y, 0, hsl2rgb (h,s,l,0) );
			pset( x, y, 1, hsl2rgb (h,s,l,1) );
			pset( x, y, 2, hsl2rgb (h,s,l,2) );

}}

return true;
}
</code>
== Also see ==
:((rgb2hsl))
== Comments ==
:Everyone can add his comments about his experiences with this function here. Tips for using it are welcome, too.

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