Color Grading using libgd and LUT files

[Jeevhi]

Is it possible to apply lookup table (LUT) using libgd?

I could find one function here but it does not have any description so not sure if that's the correct function

https://libgd.github.io/manuals/2.3.3/files/gd_color_map-c.html

Thanks

[cmb69]

gdColorMapLookup() is a helper for XPM support; to use it for other purposes, you would need to defined a gdColorMap structure.

But I wonder what you're actually looking for. Can you please clarify?

[Jeevhi]

I like to apply LUT to image, very much like we do in photoshop Layer > New Adjustment Layer > Color Lookup but couldn't find documentation on how to do it libgd.