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- function colorwheel = colorwheel(colorlevel,saturation,luminance)
- if ~exist('saturation','var'), saturation = []; end
- if ~exist('luminance','var'), luminance = []; end
- if isempty(saturation), saturation = 1; end
- if isempty(luminance), luminance = 1; end
- x = linspace(-pi,pi,colorlevel);
- x = x(1:end-1)';
- colorwheel = ([cos(x),cos(x-pi/3*2),cos(x-pi/3*4)]+1).*saturation/2+1-saturation;
- colorwheel = colorwheel.*luminance;
- end
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