RetroTINK-4K Custom Color Matrix
Instructions
Custom color gamut correction factors can
be loaded by the user. Each file is a set of csv values describing gamma and
Input RGB -> XYZ transforms. The RT4K will automatically apply the correct
XYZ -> Output RGB matrix depending on the specified HDMI output colorimetry.
The csv file has 14 entries (all floating
point) on a single line:
1. Input Gamma
2. Input Lift
3. Input Gain
4. Output Gamma
5. Transfer Function (0 = sRGB, 1 = Rec.
601/709, 2 = SMPTE 240, 3 = Conventional Gamma)
6-14. Input RGB -> XYZ Matrix
Coefficients
Thanks to Dan Mons, Keith Raney (https://github.com/danmons/colour_matrix_adaptations/tree/main)
and Extrems (https://www.gc-forever.com/wiki/index.php?title=Game_Boy_Interface)
for providing technical assistance and example data.