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:
- For more info, see our website at
-
SEE ALSO
mjpegtools(1)