On Sunday 31 May 2009 05:36:00 pm Øyvind Kolås wrote: snip > The colors selected in this manner will likely be used in a different > color space than the one they are selected in anyways. This means that > undefined regions of the colorspace and computational complexity are > only a concern of the color picker interface. CIE Lch is another > options that can be considered. I haven't studied it but suspect that > the current computation of Lightness has crude 8bit/gamma assumptions > in it. > > /Øyvind K. In addition CIE L*c*h* is device independent which would allow the color picker to be color managed (IE. CIE L*c*h* -> monitor device colors) and it would also allow for the "picked" colors to be converted into the correct color space for the image being edited. I think this is an important consideration. L* is the same as L* in CIE L*a*b* and is linear with values between 0.0 for black and 100.0 for diffuse white but higher values are allowed for spectral whites. Hal _______________________________________________ Gimp-developer mailing list Gimp-developer@xxxxxxxxxxxxxxxxxxxxxx https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-developer
