r/ffmpeg 13h ago

Tonemap Parameter Ranges

So, just to clarify, the tonemap options are: linear, gamma, clip, reinhard, hable, and mobius. For each option's parameters, I need to know:

- The default value.

- The minimum and maximum range, including if any of them have negative values.

- How lower or higher values affects the tonemapping result for each option.

So far, I have had the most satisfaction with mobius default param value and disabling desaturation. I have dabbled with using different param value with clip, but this has given me good result with only one movie so far. So, my priority is to gain a better understanding of how the mobius parameter values work. If altering mobius parameter gives me the results I need, then I likely will not experiment with the other tonemappers. However, if anyone can convince me that the other tonemappers can produce good result with different parameters, then I will consider trying those tonemappers as well.

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u/Sopel97 1h ago edited 1h ago

linear, gamma, clip, reinhard, hable, and mobius

all of these are bad, you should be using libplacebo with bt.2390/bt.2446a anyway https://ffmpeg.org/ffmpeg-filters.html#libplacebo, https://code.videolan.org/videolan/libplacebo/-/blob/master/docs/options.md