From 6faa1275a2e163471e0cd16526713955d3500aa2 Mon Sep 17 00:00:00 2001 From: Paul B Mahol Date: Mon, 28 Aug 2017 14:32:25 +0200 Subject: avfilter: add despill filter Signed-off-by: Paul B Mahol --- doc/filters.texi | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) (limited to 'doc') diff --git a/doc/filters.texi b/doc/filters.texi index ce3f75dbd6..862290550d 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -6811,6 +6811,41 @@ FFmpeg was configured with @code{--enable-opencl}. Default value is 0. @end table +@section despill + +Remove unwanted contamination of foreground colors, caused by reflected color of +greenscreen or bluescreen. + +This filter accepts the following options: + +@table @option +@item type +Set what type of despill to use. + +@item mix +Set how spillmap will be generated. + +@item expand +Set how much to get rid of still remaining spill. + +@item red +Controls ammount of red in spill area. + +@item green +Controls ammount of green in spill area. +Should be -1 for greenscreen. + +@item blue +Controls ammount of blue in spill area. +Should be -1 for bluescreen. + +@item brightness +Controls brightness of spill area, preserving colors. + +@item alpha +Modify alpha from generated spillmap. +@end table + @section detelecine Apply an exact inverse of the telecine operation. It requires a predefined -- cgit v1.2.3