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Post processing – More about color grading

Surfin Bird edited this page Jun 21, 2019 · 1 revision

Let’s say we have some filter which produces picture like that, and we don’t like it:

Boring old picture

First step: make a screenshot of it, like the one here. Then, open it in your favourite image editor, and paste neutral color grading image on top of it, in some corner:

Screenshot of some image editor

Don’t forget to merge the layers, so you would adjust colors of both things at the same time:

Merged layers

After that, do any of color transformations you might like. Curves, saturation, contracts, auto-color, auto-contrast, hue, tint, any other effect that relies on original pixel color and nothing else:

Curves transformation

Then, carefully cut out your color grading image and save it separately, as PNG file:

Cutting carefully…

Please, be extra careful at this step. Color grading texture should have resolution like 16×256, or 32×1024 (in other words, N×N²), everything else won’t work.

Go here and drag’n’drop your newly created image onto that green area, and then, copy resulting base64 link containing all the image into the clipboard:

Copying link

And simply paste it as EXT_COLOR_GRADING/FILE in your PP-filter (you can do all of that while AC is running):

[EXT_COLOR_GRADING]
ENABLED = 1
FILE = data:image/png;base64,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

Enjoy the new look!

Screenshot with color grading applied

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