Just tried XYZ LUT with swapped matrix, it doesn't work well for me. get subtle(but ugly) red & green banding in the dark area. On Sun, Sep 11, 2011 at 1:13 PM, xun wang <xun911@xxxxxxxxx> wrote: > Hi Graeme, > yes I saw it when I was doing troubleshooting, but I didn't completely > understand it when I read it. I've just re-read it and I think I understand > it better now, this might fix the problem in a more fundamental way. > > Few questions: > 1) My main display is Dell 3007wfp-hc, it's 92% adobe RGB, and I edit in > Pro Photo RGB. For the source colorspace, should I be choosing Adobe RGB or > Prophoto? I would assume it's Pro Photo Right? > 2) there are 3 LUT based profile types in dispcalGUI, should I use the Lab > LUT one? > 3) using cLUT profile, do I still need to manually set the black level to > see all the shadow details as I've done now for the matrix profile or can I > use "native"? > 4) are there any other real world advantage/disadvantage for display > profile by using the cLUT profile type besides it contains more information > and more flexible? > > thanks! > > > On Sun, Sep 11, 2011 at 4:16 AM, Graeme Gill <graeme@xxxxxxxxxxxxx> wrote: > >> xun wang wrote: >> > I'm not sure if there is a default black point for argyllcms. >> >> Hi, >> >> You have read this <http://www.argyllcms.com/doc/CrushedDisplyBlacks.html>, >> haven't you ? >> >> Graeme Gill. >> >> >