[FFmpeg-trac] #6694(swscale:new): can we have gamma-gorrect image-resizing

[FFmpeg]

#6694: can we have gamma-gorrect image-resizing
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             Reporter:  mtc      |                     Type:  defect
               Status:  new      |                 Priority:  minor
            Component:  swscale  |                  Version:  unspecified
             Keywords:           |               Blocked By:
             Blocking:           |  Reproduced by developer:  0
Analyzed by developer:  0        |
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 because sRGB is non[physical(energy)]-linear when resizing you might get
 differently from...
  Luminance-Chroma color-spaces based on it are also affected (YCbCr YUV)

 maybe hard for me to explain, see links:

 http://forum.doom9.org/showthread.php?t=160038
 http://blog.johnnovak.net/2016/09/21/what-every-coder-should-know-about-
 gamma/
 https://ninedegreesbelow.com/photography/linear-gamma-blur-normal-
 blend.html#
 https://github.com/webmproject/libwebp/blob/b62cdad287ef265de189247f406cc3516eee97f0/doc
 /webp-container-spec.txt#L505
 https://userbase.kde.org/krita/manual/colormanagement
 https://docs.krita.org/Gamma_and_Linear
 https://cloud.githubusercontent.com/assets/72159/11488537/3da372b4-97bf-
 11e5-93d1-7b0923a0a973.png
 http://www.nies.ch/doc/it/monitor.en.php
  https://photo.stackexchange.com/questions/53725/what-is-the-purpose-of-
 gamma-correction-in-todays-screens-and-how-does-it-relat
 http://www.lagom.nl/lcd-test/gamma_calibration.php
  http://www.lbodnar.dsl.pipex.com:80/imaging/gamma.html
  http://forum.doom9.org/archive/index.php/t-172094.html

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Ticket URL: <https://trac.ffmpeg.org/ticket/6694>
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