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yuvdenoise(1)		      MJPEG tools manual		 yuvdenoise(1)

NAME
       yuvdenoise - Motion-Compensating-YUV4MPEG2-frame-denoiser

SYNOPSIS
       yuvdenoise [options] </dev/stdin >/dev/stdout

DESCRIPTION
       yuvdenoise  is  a  spatio-temporal  noise-filter for YUV4MPEG2 streams.
       This is useful to reduce the bitrate needed  to	encode	your  captured
       movies for VCD and SVCD creation.

OPTIONS
       yuvdenoise accepts the following options:

       -m y,u,v [0..255] Pre 3D Median filter thresholds
	   This	 sets  the thresholds for the pre-processing 3D median filter.
	   A value of 0 disables median filtering for a specific component and
	   0,0,0  completely  disables/bypasses	 the  filter.	This filter is
	   applied before the temporal (-t) filter.
	   (default=0,0,0)

       -r y,u,v [0..255] Renoising filter thresholds
	   This sets the thresholds for adding random Default is disabled (not
	   adding random noise).  This filter, if enabled, is run as the Blast
	   filter (after the median and temporal filters).
	   (default=0,0,0)

       -t y,u,v [0..255] Temporal noise-filter thresholds
	   This sets the thresholds for	 the  temporal	noise-filter.	Values
	   above  12  may introduce ghosting.  The default value for Y' (y) is
	   often a little high and reducing it to 4 or 5 may be necessary.  If
	   the	chroma	smears or ghosts try using values of 5 or 6 instead of
	   the default (12).  A value of 0 disables temporal filtering for the
	   specified  component	 (0,0,0 disables/bypasses all temporal filter‐
	   ing).
	   (default=4,8,8)

       -M y,u,v [0..255] Post 3D Median filter thresholds
	   This sets the thresholds for the post-processing 3D median  filter.
	   A value of 0 disables median filtering for a specific component and
	   0,0,0 completely disables/bypasses  the  filter.   This  filter  is
	   applied after the temporal (-t) filter.
	   (default=4,8,8)

HOW IT WORKS
       To Be Written (maybe) in the future.

TYPICAL USAGE AND TIPS
       As  it  is self-adapting to the noise-situation found in the stream you
       normally just can go without any options set:

       lav2yuv my-video.avi | yuvdenoise | mpeg2enc -t 1 -o my-video.m1v

AUTHOR
       This man page was written by Stefan Fendt <stefan@lionfish.ping.de> and
       revised by Steven Schultz.

FURTHER INFOS
       If  you	have  questions, remarks, problems or you just want to contact
       the developers, the main mailing list for the MJPEG-tools is:

       mjpeg-users@lists.sourceforge.net

       For more info, see our website at

       http://mjpeg.sourceforge.net/

SEE ALSO
       mjpegtools(1), mpeg2enc(1) lavrec(1) lav2yuv(1)

MJPEG Linux Square	       11th August 2005			 yuvdenoise(1)

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