Author: lorenm Date: Tue Jul 7 04:01:36 2009 New Revision: 29413 Log: new debanding filter
Modified: trunk/DOCS/man/en/mplayer.1 Changes in other areas also in this revision: Added: trunk/libmpcodecs/vf_gradfun.c Modified: trunk/Makefile trunk/libmpcodecs/vf.c Modified: trunk/DOCS/man/en/mplayer.1 ============================================================================== --- trunk/DOCS/man/en/mplayer.1 Sun Jul 5 22:10:59 2009 (r29412) +++ trunk/DOCS/man/en/mplayer.1 Tue Jul 7 04:01:36 2009 (r29413) @@ -7336,6 +7336,26 @@ Percentage of the pixels that have to be 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)" _______________________________________________ MPlayer-DOCS mailing list [email protected] https://lists.mplayerhq.hu/mailman/listinfo/mplayer-docs
