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author | Niklas Haas <git@haasn.xyz> | 2019-01-02 03:03:38 +0100 |
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committer | Jan Ekström <jeebjp@gmail.com> | 2019-02-18 01:54:06 +0200 |
commit | 12e58ff8a65c537a222a3fb954f88d98a3a5bfd2 (patch) | |
tree | 187624c5275f50f6f8d7f2d3a02d1193f7b64ae2 /DOCS/man | |
parent | 6179dcbb798aa9e3501af82ae46975e881d80626 (diff) | |
download | mpv-12e58ff8a65c537a222a3fb954f88d98a3a5bfd2.tar.bz2 mpv-12e58ff8a65c537a222a3fb954f88d98a3a5bfd2.tar.xz |
vo_gpu: allow boosting dark scenes when tone mapping
In theory our "eye adaptation" algorithm works in both ways, both
darkening bright scenes and brightening dark scenes. But I've always
just prevented the latter with a hard clamp, since I wanted to avoid
blowing up dark scenes into looking funny (and full of noise).
But allowing a tiny bit of over-exposure might be a good thing. I won't
change the default just yet (better let users test), but a moderate
value of 1.2 might be better than the current 1.0 limit. Needs testing
especially on dark scenes.
Diffstat (limited to 'DOCS/man')
-rw-r--r-- | DOCS/man/options.rst | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/DOCS/man/options.rst b/DOCS/man/options.rst index 0f7007bf89..e5a897ba4f 100644 --- a/DOCS/man/options.rst +++ b/DOCS/man/options.rst @@ -5235,6 +5235,14 @@ The following video options are currently all specific to ``--vo=gpu`` and linear Specifies the scale factor to use while stretching. Defaults to 1.0. +``--tone-mapping-max-boost=<1.0..10.0>`` + Upper limit for how much the tone mapping algorithm is allowed to boost + the average brightness by over-exposing the image. The default value of 1.0 + allows no additional brightness boost. A value of 2.0 would allow + over-exposing by a factor of 2, and so on. Raising this setting can help + reveal details that would otherwise be hidden in dark scenes, but raising + it too high will make dark scenes appear unnaturally bright. + ``--hdr-compute-peak=<auto|yes|no>`` Compute the HDR peak and frame average brightness per-frame instead of relying on tagged metadata. These values are averaged over local regions as |