Home › Forums › Help and Support › gamma/tint shift between matrix profile and lut table
- This topic has 5 replies, 2 voices, and was last updated 2 years, 5 months ago by Дмитрий Мышков.
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2021-11-15 at 20:46 #32618
Hi all. Excuse my English. I can’t understand the one moment. Maybe does someone from the people understands why, when I’m creating profiles and lut table under windows, that I don’t see a some difference (gamma, tint, temperature etc) between created icm profile (photoshop) and lut table (davinci resolve)?
But, if I create all the same moments under the poppy, the difference in gamma and temperature is visible.
For example, I can add that profile not in davinci, but in photoshop. New layer as lut table with lut from displaycal + proff setap as srgb monitor. This is where I won’t see the difference between a picture in Photoshop and in Davinchi. They will be the same. Thus, the davinchi cmm engine disappears as a reason of problem.
Also – I can load icm and lut table in mac os apps. Photoshop and Davinci Resolve and I will also see the differences that were not there with these files under Windows. It turns out that this is not a problem of the displaycal.
Does reinstall photoshop? But I watch that problem and in other apps. 3d lut creator. there are the same differences between 3dlut creator and davinci.
Reinstalling the operating system from scratch – it didn’t help.What am I doing wrong?
- This topic was modified 2 years, 5 months ago by Дмитрий Мышков.
- This topic was modified 2 years, 5 months ago by Дмитрий Мышков.
- This topic was modified 2 years, 5 months ago by Дмитрий Мышков.
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You must be logged in to view attached files.2021-11-15 at 20:53 #32624Remark. A first screen file isn’t right one. Before uploading it here, I didn’t convert it to srgb. And I can no longer delete it from the message.
2021-11-16 at 9:33 #32627sRGB encodes color RGB numbers with sRGB TRC (non constant gamma). Your LUT3D for Davinci may be Rec709 g2.2 or 2.4. In one of the images (the one that is not ok) you may be implicitly assigning a colorspace without converting it previously to desired colrospace (whatever it is).
Also changing default display ICC on the fly usually needs app restart (at least in Windows), otherwise Photoshop won’t notice it and all you test will be wrong.
2021-11-18 at 7:09 #32649I even rebooted the operating system after installing the profile on the system )
Exposing the gamma in the photoshop/Davinci Resolve for the mac os is equal to the gamma exposed for photoshop/Davinci (windows).I will repeat all the moments (for myself, in order to somehow understand the situation, what is happening):
1. Other people don’t have this problem. Otherwise, someone voiced this problem.
2. This is not a displaycal bug – I took files from windows and installed them on the mac os. icm profile, 3dlut file – same problem.- This reply was modified 2 years, 5 months ago by Дмитрий Мышков.
2021-11-18 at 17:28 #32654bump
2021-11-18 at 18:28 #32656A problem was solved. Be disable an “apply calibration (vcgt)” item (3d lut tab in displaycal).
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