Mapping from ST.2084 to Idealized Gamma 2.2

[dcchan2]

I have been using DisplayCAL  to create 3D LUTs to display HDR10 video on wide gamut SDR displays, and that works quite well.  All I need to do is to select BT.2020 as Source Colorspace, and ST.2084 as Tone Curve, under 3D Lut settings.

I would like to do the same for a “generic” display which is calibrated to Gamma 2.2, DCI-P3 .  If I uncheck the option “Create 3D LUT after profiling”,  can I select an “idealized” color profile and have DisplayCAL create the 3D LUT from it?

[Vincent]

I would like to do the same for a “generic” display which is calibrated to Gamma 2.2, DCI-P3 .  If I uncheck the option “Create 3D LUT after profiling”,  can I select an “idealized” color profile and have DisplayCAL create the 3D LUT from it?

If you use standalone LUT3D creator you can use whatever source/destination profile you want.

[dcchan2]

Thank you so much.  That’s exactly what I was looking for.

Take it one step further – is there any way to specify an idealized destination; e.g., REC709 and gamma 2.2?

[dcchan2]

(I can’t seem to find any way to edit the above post).

I have managed to download a Reference REC709 icc profile, so I could use that.  However, I’m still interested in finding out whether it’s possible to simply target a gamma and colour space without having the icc (or, alternatively, is there any way to create such reference icc).

Thanks again.

[Vincent]

There is a standalone app called “synth profile editor” and a commandline tool called iccvcgt in argyllcms to insert VCGT data into synth profiles from a previous calibration.

[Author]

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