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]]
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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’.
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.
see also
mjpegtools
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[:at:]lists.sourceforge[:dot:]net
For more info, see our website at
http://mjpeg.sourceforge.net/