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-rw-r--r--doc/filters.texi5
1 files changed, 5 insertions, 0 deletions
diff --git a/doc/filters.texi b/doc/filters.texi
index 785ce85..1217f7e 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -2371,6 +2371,11 @@ Convert source to grayscale:
@example
colorchannelmixer=.3:.4:.3:0:.3:.4:.3:0:.3:.4:.3
@end example
+@item
+Simulate sepia tones:
+@example
+colorchannelmixer=.393:.769:.189:0:.349:.686:.168:0:.272:.534:.131
+@end example
@end itemize
@section colormatrix
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