----- Original Message ----- > the red values are diminished over the entire range but what appears to occur > is that red values are minimized from the high end of the scale leaving the > low end untouched. If I push the red value down to .500 then the entire red > section of the histogram is bunched in exactly 1/2 of the scale.
I don't understand your problem. If you divide the red value of each pixel, then it's normal that the histogram is "compressed" to the first half. The low end is untouched because 0/2 = 0. So a pixel that had no red before still has no red after a multiplication by 0.5. -- Matthieu Moy http://www-verimag.imag.fr/~moy/ ------------------------------------------------------------------------------ Dive into the World of Parallel Programming The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ _______________________________________________ Darktable-users mailing list Darktable-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/darktable-users