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[HELP] Fix black levels - Printable Version

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Fix black levels - Miranda - 31.10.2022

What is the best way to adjust only the black levels? I tried with the "Levels" filter in Vapoursynth, but it seemed to make the image more or less greener.


RE: Fix black levels - Selur - 31.10.2022

No, clue what you want to do exactly, so there's what usually comes to mind (assuming your source if flagged properly):
  • use Levels with 'luma only' (or with 'Use RGB' depending on your preference)
  • use a color matrix or LUT
  • use Smooth Levels
  • use Limiter if you want to 'cut off' a range
Depending on your source, stuff like 'Auto white', 'Retinex' or 'Grayworld' might also work.

Cu Selur

Ps.: from the green part I guess that you only want to adjust the luma and not all channels.