avfilter: add roberts cross operator

Signed-off-by: Paul B Mahol <onemda@gmail.com>

1 files changed, 17 insertions, 0 deletions

diff --git a/doc/filters.texi b/doc/filters.texi
index 53e057c774..40c89626db 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -12118,6 +12118,23 @@ trim=end=5,reverse
 @end example
 @end itemize
 
+@section roberts
+Apply roberts cross operator to input video stream.
+
+The filter accepts the following option:
+
+@table @option
+@item planes
+Set which planes will be processed, unprocessed planes will be copied.
+By default value 0xf, all planes will be processed.
+
+@item scale
+Set value which will be multiplied with filtered result.
+
+@item delta
+Set value which will be added to filtered result.
+@end table
+
 @section rotate
 
 Rotate video by an arbitrary angle expressed in radians.