From 88fc4806b98deabd1efae588af6c911ead5ccae6 Mon Sep 17 00:00:00 2001
From: lorenm <lorenm@b3059339-0415-0410-9bf9-f77b7e298cf2>
Date: Tue, 7 Jul 2009 02:01:36 +0000
Subject: new debanding filter

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@29413 b3059339-0415-0410-9bf9-f77b7e298cf2
---
 DOCS/man/en/mplayer.1 | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

(limited to 'DOCS')

diff --git a/DOCS/man/en/mplayer.1 b/DOCS/man/en/mplayer.1
index 0f2152eab8..01bcc86f75 100644
--- a/DOCS/man/en/mplayer.1
+++ b/DOCS/man/en/mplayer.1
@@ -7336,6 +7336,26 @@ Percentage of the pixels that have to be below the threshold (default: 98).
 Threshold below which a pixel value is considered black (default: 32).
 .RE
 .
+.TP
+.B gradfun[=strength[:radius]]
+Fix the banding artifacts that are sometimes introduced into nearly flat
+regions by truncation to 8bit colordepth.
+Interpolates the gradients that should go where the bands are, and
+dithers them.
+.sp 1
+This filter is designed for playback only.
+Do not use it prior to lossy compression, because compression tends
+to lose the dither and bring back the bands.
+.RSs
+.IPs <strength>
+Maximum amount by which the filter will change any one pixel.
+Also the threshold for detecting nearly flat regions (default: 1.2).
+.IPs <radius>
+Neighborhood to fit the gradient to.
+Larger radius makes for smoother gradients, but also prevents the filter
+from modifying pixels near detailed regions (default: 16).
+.RE
+.
 .
 .
 .SH "GENERAL ENCODING OPTIONS (MENCODER ONLY)"
-- 
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