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

FFmpeg trac at avcodec.org
Tue Sep 26 03:08:37 EEST 2017


#6694: can we have gamma-gorrect image-resizing
-------------------------------------+-----------------------------------
             Reporter:  mtc          |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  minor        |                Component:  swscale
              Version:  unspecified  |               Resolution:
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-----------------------------------

Comment (by mtc):

 http://www.synth.in/2016/07/your-scaling-software-sucks.html
 resizing the image might..
 [[Image(http://xkr47.outerspace.dyndns.org/tmp/gamma-1.0-or-2.2.png)]]
 [[Image(http://www.lagom.nl/lcd-test/img/gamma-test-2.png)]]
 [[Image(https://userbase.kde.org/images.userbase/a/ad/Krita_2_9_colormanagement_blending_1.png)]]
 [[Image(https://docs.krita.org/images/thumb/e/e4/Krita_2_9_colormanagement_blending_2.png
 /500px-Krita_2_9_colormanagement_blending_2.png)]]
 [[Image(https://i.imgur.com/7Dq6KSX.png)]]
 [[Image(http://www.nies.ch/pic/monitor-gamma.png)]]

 https://www.gimp-forum.net/Thread-Linear-Gamma-RGB-Color-Space


 http://int64.org/projects/resamplehq/
 sRGB gamma-skewed
 [[Image(http://int64.org/projects/resamplehq/earth-gi.png)]]

 RGBlinear gamma-compensating scaling
 [[Image(http://int64.org/projects/resamplehq/earth-ga.png)]]

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Ticket URL: <https://trac.ffmpeg.org/ticket/6694#comment:1>
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