On Mar 6, 2013, at 6:21 PM, Roger Breton <graxx@videotron.ca> wrote:
Here's an example.
Lab CMM Cyan Mag Yell Black ------- -------------- ------- ------- ------- ------- 50 0 0 (ACE) 48.83 40.60 41.37 15.95 50 0 0 (HDM) 49.08 40.64 40.73 15.79 50 0 0 (Argyll) 49.08 40.64 40.73 15.79 50 0 0 (PatchTool) 49.09 40.64 40.73 15.79
In Argyll, I use: icclu -v -fb -ia SWOP2006_C3.icc, and get 50.000000 0.000000 0.000000 [Lab] -> Lut -> 0.490807 0.406393 0.407315 0.157936 [CMYK]
I use InDesign CS5.5 to carry the conversion in the color palette.
I use ColorToolbox ColorCalculator to look up the CMYK value from Lab = 50 0 0.
PatchTool uses LittleCMS libraries.
In all these cases, I use the same output profile.
I hope I'm doing something wrong in InDesign, but I think I have all the ColorSettings right.
The difference may not look all that extreme, number wise, but visually, it shows, and any instrument picks is up.
Other than ACE everything looks pretty much in line. Is BPC involved in any way? Also, I'd do this in Photoshop rather than InDesign… but that's just me… Does Photoshop agree? regards, Steve