On 8/10/07, Graeme Gill <graeme@xxxxxxxxxxxxx> wrote: > Daniel Chaffe wrote: > > If anyone else would like to work on making a Hutchcolor .cht file for > > argyll, here is a scan of the target and the reference file that goes > > with it: > > > > http://www.geocities.com/d_chaffe/hutch667dpi8bit.zip > > http://www.geocities.com/d_chaffe/6630-6659ref.zip > > Attached is a Hutchcolor.cht that works with the above example. > > Graeme Gill. <attachment snipped> Thanks. This gives me a better profile than two other programs I tried, both of which were unusable due to severe posterization. If this .cht were to be used with a Hutchcolor target from a different batch, am I right that one would need to change the list of expected XYZ values? I applied the argyll profile to a Granger Rainbow, and it seems normal except for some oddness in the blues. Is this something to be worried about? I haven't noticed the effect in any real-world images. http://www.geocities.com/d_chaffe/grangerrainbowcopy.zip Daniel