[FFmpeg-user] Colorchart and colormap

[Paul B Mahol]

On Tue, Apr 26, 2022 at 6:48 PM Michael Koch <astroelectronic at t-online.de>
wrote:

> I wrote a few examples for the workflow with "colorchart" source and
> "colormap" filter.
> This is a nice feature for making color corrections.
> See chapters 2.31 and 2.32 in
> http://www.astro-electronic.de/FFmpeg_Book.pdf


Also there is way to speed up filtering by using  haldclut(src) filter.

First you apply colormap filter to haldclutsrc frames and than use haldclut
filter with that frame as 2nd clut stream.

With level option one can control how precise will 3d mapping be.


>
>
> Michael
>
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