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yuvycsnoise(1)


NAME

   yuvycsnoise - Noise filter specialized for NTSC Y/C separation noise

SYNOPSIS

   yuvycsnoise   [-t]   [-m t|b|i|c]   [-S   MIN]   [-T  ERRT[,MAXT]]  [-B
   ERRB[,MAXB]] [-I ERRI[,MAXI]] [-C ERRC[,MAXC]]

DESCRIPTION

   If video capture hardware has only a poor Y/C  separator,  at  vertical
   stripe (especially red/blue), noises appear which seem checker flag and
   bright/dark invert per 1 frame.  yuvycsnoise  reduces  noises  of  this
   type.

OPTIONS

   yuvycsnoise accepts the following options:

   -t      test.  Instead  of  noise  reduction,  noises will be marked as
           black pixel.

   -m METHOD
           (default: tbic).
           Select method.  METHOD is string in which each  character  mean
           method.
            t: 'triframe' method of luma noise reduction.
            b: 'biframe' method of luma noise reduction.
            i: 'infield' method of luma noise reduction.
            c: chroma noise reduction. use 3 frames as 'triframe'.

   -S MIN  (default: 4).
           Set  minimum  threshold  of  luma/chroma  difference  which  is
           treated as noise.

   -T ERRT[,MAXT]
           (default: 32,255).

   -B ERRB[,MAXB]
           (default: 32,255).

   -I ERRI[,MAXI]
           (default: 16,255).

   -C ERRC[,MAXC]
           (default: 12,255).
           Set threshold of luma/chroma difference of each methods.   ERRx
           is  maximum error of luma/chroma of pixels around target pixel,
           which should be same if target contain noise.  MAXx is  maximum
           threshold  of  luma/chroma  difference  of  target  pixel  from
           luma/chroma after noise reduced.

AUTHOR

   yuvycsnoise was written by Kawamata/Hitoshi.
   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)



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