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authorPaul B Mahol <onemda@gmail.com>2017-12-27 18:51:23 +0100
committerPaul B Mahol <onemda@gmail.com>2018-01-03 19:45:01 +0100
commit09b24a807ad23b4fec25049775075cc63c0c1fa3 (patch)
treece0fa31b47b1758b7ad7c7b7f1f0512fd7b06677 /doc/filters.texi
parent631fa0432be8968e0fd372595749b918224946df (diff)
downloadffmpeg-09b24a807ad23b4fec25049775075cc63c0c1fa3.tar.gz
avfilter: add entropy filter
Signed-off-by: Paul B Mahol <onemda@gmail.com>
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@@ -8220,6 +8220,20 @@ Set pal8 output pixel format. This option does not work with codebook
length greater than 256.
@end table
+@section entropy
+
+Measure graylevel entropy in histogram of color channels of video frames.
+
+It accepts the following parameters:
+
+@table @option
+@item mode
+Can be either @var{normal} or @var{diff}. Default is @var{normal}.
+
+@var{diff} mode measures entropy of histogram delta values, absolute differences
+between neighbour histogram values.
+@end table
+
@section fade
Apply a fade-in/out effect to the input video.