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:

       -g y,u,v [0..255] Gaussian filter thresholds
           This sets the thresholds for the gaussian filter.  A value of 0 disables 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)

       -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  "noise"  back  into  the  video  stream.
           Default is disabled (not adding random noise).  This filter, if enabled, is run as the
           Blast filter (after the median and temporal filters).  Reasonable value is  4,8,8  but
           if  you  are  working  with  monochrome  (black and white movie) then 4,0,0 will speed
           things up by not processing the chroma planes.
           (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 filtering).  Thus for black and  white
           movies 4,0,0 will be faster by not denoising the chroma planes.
           (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.
           Reasonable value is 4,8,8 but if you are working  with  monochrome  (black  and  white
           movie) then 4,0,0 will speed things up by not processing the chroma planes.
           (default=0,0,0)

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.

ADDITIONAL INFO

       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)