[FFmpeg-trac] #6034(documentation:new): Default chroma option and range are wrong at smartblur filter
FFmpeg
trac at avcodec.org
Tue Dec 20 16:26:48 EET 2016
#6034: Default chroma option and range are wrong at smartblur filter
-------------------------------------+-------------------------------------
Reporter: nicol | Type: defect
Status: new | Priority: minor
Component: | Version: git-
documentation | master
Keywords: smartblur | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Summary of the bug: Default chroma option and range are wrong at smartblur
filter.
How to reproduce:
{{{
% ffmpeg -h filter=smartblur
chroma_radius <float> ..FV.... set chroma radius (from -0.9 to 5) (default
-0.9)
cr <float> ..FV.... set chroma radius (from -0.9 to 5) (default -0.9)
chroma_strength <float> ..FV.... set chroma strength (from -2 to 1)
(default -2)
cs <float> ..FV.... set chroma strength (from -2 to 1) (default -2)
chroma_threshold <int> ..FV.... set chroma threshold (from -31 to 30)
(default -31)
ct <int> ..FV.... set chroma threshold (from -31 to 30) (default -31)
https://ffmpeg.org/ffmpeg-filters.html#smartblur-1
chroma_radius, cr
Set the chroma radius. The option value must be a float number in the
range [0.1,5.0] that specifies the variance of the gaussian filter used to
blur the image (slower if larger). Default value is 1.0.
chroma_strength, cs
Set the chroma strength. The option value must be a float number in
the range [-1.0,1.0] that configures the blurring. A value included in
[0.0,1.0] will blur the image whereas a value included in [-1.0,0.0] will
sharpen the image. Default value is 1.0.
chroma_threshold, ct
Set the chroma threshold used as a coefficient to determine whether a
pixel should be blurred or not. The option value must be an integer in the
range [-30,30]. A value of 0 will filter all the image, a value included
in [0,30] will filter flat areas and a value included in [-30,0] will
filter edges. Default value is 0.
ffmpeg version N-82785-g6b95da9
built on ... zeranoe
}}}
Patches should be submitted to the ffmpeg-devel mailing list and not this
bug tracker.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/6034>
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