Hening Bettermann wrote: > thank you for your fast reply. - Yes I am aware of that, here is the command > line I used: > ~/bin/Argyll_V1.5.0/bin/scanin -v -dipn -p _MG_7703.tif ColorChecker.cht > ColorChecker.cie > The > ColorChecker.cht file is in place in the ref folder. Hi, Unless you are currently in the ref folder, how are the ColorChecker.cht and ColorChecker.cie etc. files going to be found ? ie. you need to provide the path to these files. For instance, (and I'm guessing), something like: ~/bin/Argyll_V1.5.0/bin/scanin -v -dipn -p _MG_7703.tif ~/bin/Argyll_V1.5.0/bin/ColorChecker.cht ~/bin/Argyll_V1.5.0/bin/ColorChecker.cie Graeme Gill.