#11002: Unnecessary PNG metadata generated
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Reporter: | Owner: (none)
MasterQuestionable |
Type: enhancement | Status: closed
Priority: normal | Component: avformat
Version: git-master | Resolution: invalid
Keywords: png | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by Balling):
>Now we have 2 visually distinct images: in fact identical.
If you assign 2.0 gamma to image of 2.4 gamma and go outside in the Sun
you get the correct image again. Because 2.4 gamma is what you get when
you are in dark room, 2.2 when in light office and 2.0 outside uner the
sun when you film the videos.
The same happens when you assign a ICC profile using iCCP chunk(s). Even
in Photoshop — assign profile. It has Gamma 2.0 ICC too.
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Ticket URL: <https://trac.ffmpeg.org/ticket/11002#comment:12>
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