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Hi. Can I create a windows color profile using DisplayCAL?
I have this adjustment:
Red_Gamma=100
Red_Brightness=-4
Red_Contrast=97
Green_Gamma=110
Green_Brightness=-5
Green_Contrast=95
Blue_Gamma=110
Blue_Brightness=0
Blue_Contrast=104Based on these settings I need to get an ICC file. I can’t figure out how to do this in DisplayCAL.
Can you tell me how I can generate such a file in DisplayCAL, given that I don’t have a calibrator?
At the moment the “Calibrate” button is not active.
Still not clear to me at least what is Red_Gamma=100 and so on. On Screen numbers or graphic card drivers or something else? ICC profile measures the screen response to match a calibration profile. You can use as measured to make a profile but it still needs to measure the color to know how much red is in gamut color coordinates xyz to adjust its max red to max color profile and go threw steps of red to match the measured to sent coordinates. As measured does not measure white and the colors and adjust it. White is the gamma of the monitor. You need a meter to use displaycal.
I think as measured do not touch colors or its gamma curve but makes a profile using the meter. On screen color calibration is good but not needed most cases. Software correction with GPU is not good and not needed. ICC uses the GPU and makes the same adjustments but not globaly only in color aware apps.
If we asume that GPU driver settings can be dumped by DisplayCAL-curve-viewer.exe into a .cal file:
-Create an ICC file from EDID primaries in monitor, assuming they are accurate. You can create manually one form EDID primaries and whatever gamma you set “by visual evaluation” (2.2 … )
-apply .cal calibration to that synthetic ICC with iccvcgt.exe (command line tool in argyllcms)If you cannot dump those settings, you’ll have to cook equivalent curves in an spreadsheet, scale to 0-65535, create a synthetic .cal file [0-255 entry] -> [0-65535] with infor from each channel, then apply above.
And of course reset GPU settings because this will be applied in VCGT.
