[FFmpeg-trac] #11019(avfilter:new): Full-Image Averaging (Favg) denoise

[FFmpeg]

#11019: Full-Image Averaging (Favg) denoise
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             Reporter:               |                    Owner:  (none)
  MasterQuestionable                 |
                 Type:  enhancement  |                   Status:  new
             Priority:  normal       |                Component:  avfilter
              Version:  unspecified  |               Resolution:
             Keywords:  denoise      |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by MasterQuestionable):

 ͏    The filter essentially only needs to handle 1 parameter:
 ͏    The difference threshold:
 ͏    |*| Valid range 0 ~ 1
 ͏    |*| May be expressed in percentage (e.g. 3.125%)
 ͏    |*| Or fraction (e.g. 8/255, 2,048/65,535)
 ͏    .
 ͏    Additional parameters shall just mean the threshold for each
 component (i.e. RGB, YUV etc.):
 ͏    When undefined assume the 1st parameter (threshold for 1st
 component).
 ͏    Excessive parameters shall just be silently ignored. (support for
 arbitrary component configuration)

 ͏    Info message about the evaluated fraction form should be reported:
 when threshold not specified in fraction.
 ͏    Warning should be given when the evaluation leads 0 or 1: as they are
 sort of special case.
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Ticket URL: <https://trac.ffmpeg.org/ticket/11019#comment:2>
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