Martin Weberg wrote: > Hi > > I'm profiling a CMYK printer using it's own RIP and linearisation > tool. FYI, it's a matte paper and I'm using v1.0.4 > > To determine TIL for profiling I used to do this: > xicclu -fif -a -lx profile.icc > Inputting 0 0 0 and decrease x until L value increases. > > Now, this printer/paper combination gave a TIL at 200%. > > Then, I tried a different approach using: > iccgamut -ff -ia -lx profile.icc > Decreasing x until reported gamut volume decreases. > > This gamut volume approach gave a TIL around 290% (442585 ccu) > Trying -l200 gave 426403 ccu only 3.5% less volume, maybe no problem. > > Looking at the gamuts, using TIL 200% sacrifices colours laying > between the gamut black point and secondary colours. Because of this, > the gamut approach suits me better. Have anybody else tried this? > Comments? > > Martin Weberg > Martin! It's almost exactly what I do at last 2 days! :) I do: iccgamut -pj -dpp -lx profile.icc Mention must be note, that I use ArgyllCMS linearization and apply the calibration to the profile (applycal). Such way the iccgamut can account the limit exactly as it do colprof/collink. I'm plotting a dependency graph of gamut from limit value. Best regards, Nikolay.