yuvycsnoise(1)
NAME
yuvycsnoise - Noise filter specialized for NTSC Y/C sepa
ration 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 thresh
old 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/