Hi, Nick Lamb <njl98r@xxxxxxxxxxxxxxx> writes: > On Thu, Feb 08, 2001 at 01:36:10PM +0100, Roel Schroeven wrote: > > The value in the gimp histogram is calculated as the maximum of the red, > > green and blue channels now. Wouldn't it be better to use the average of the > > three color channels? > > We discussed this when I was fixing the histogram for 1.2.x BRANCH (btw, > did that fix go into 1.2.1, or did it just rot? Maybe I should look for > myself) and I can't remember what the arguments were for leaving it as > it is, but that's what we decided to do in 1.2 at least. Well, max (r,g,b) is the correct formula for calculating the value of a color (assuming that value corresponds to the V in HSV). The average of the three channels is a somewhat useless number, but it might make sense to add intensity (mostly defined as 0.3 r + 0.59 g + 0.11 b) as an option. Salut, Sven
