[FFmpeg-cvslog] doc/filters.texi: add yet another laplacian edge detector

Paul B Mahol git at videolan.org
Sat Aug 5 11:39:43 EEST 2017


ffmpeg | branch: master | Paul B Mahol <onemda at gmail.com> | Sat Aug  5 10:36:48 2017 +0200| [c47491041466043a260412504f4294a2b458ebdb] | committer: Paul B Mahol

doc/filters.texi: add yet another laplacian edge detector

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=c47491041466043a260412504f4294a2b458ebdb
---

 doc/filters.texi | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/doc/filters.texi b/doc/filters.texi
index a920bf935e..7e5a9a625a 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -5881,6 +5881,12 @@ convolution="0 1 0 1 -4 1 0 1 0:0 1 0 1 -4 1 0 1 0:0 1 0 1 -4 1 0 1 0:0 1 0 1 -4
 @end example
 
 @item
+Apply laplacian edge detector which includes diagonals:
+ at example
+convolution="1 1 1 1 -8 1 1 1 1:1 1 1 1 -8 1 1 1 1:1 1 1 1 -8 1 1 1 1:1 1 1 1 -8 1 1 1 1:5:5:5:1:0:128:128:0"
+ at end example
+
+ at item
 Apply emboss:
 @example
 convolution="-2 -1 0 -1 1 1 0 1 2:-2 -1 0 -1 1 1 0 1 2:-2 -1 0 -1 1 1 0 1 2:-2 -1 0 -1 1 1 0 1 2"



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