Wed, 24 Oct 2012 02:06:02 +0200 "Xavi" wrote: > > > > >Then, on Photoshop I create 4 rectangles, that I fill, one by one, with the >RGB values obtained. I save them on Tiff format and I print the file with >the same program and the same printing options that I have used to print the >test chart.Hello, Xavi! I think You can introduce the error at this stage because there may be a difference between AgyllCMS chart image generation and the Photoshop. Try to print the target in attached Test4.zip the same way as You have printed the targets for MP_B01_396p64g3bArgyllv140_121011.ti3. Then read the chart the same way as You've read MP_B01_396p64g3bArgyllv140_121011.ti3 (I'd recommend the reading in the strip mode, not patch-by-patch). After reading, compare the targets: verify.exe -v Test4.ti3 Test4_fakeread.ti3 And You'll see actual workflow errors. By the way, the patch 29.000000 14.000000 50.000000 [Lab] is out-of-gamut for Your printer. You can't check the tolerance by out-of-gamut colors. So, it's Lab value was replaced by the nearest possible (by xicclu -fif then -ff): 46.397 13.620 42.779