yuvdenoise - Motion-Compensating-YUV4MPEG2-frame-denoiser
yuvdenoise [options] </dev/stdin
>/dev/stdout
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.
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)
To Be Written (maybe) in the future.
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
This man page was written by Stefan Fendt
<stefan@lionfish.ping.de> and revised by Steven Schultz.
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/