yuvinactive - Set a part of the video to a defined state
] </dev/stdin >/dev/stdout
operates with a area (rectangle) you define. By default is
sets it to really black. But you can tell tell yuvinactive to darken the area,
or fill it with a certain color. It can also make the content of the area
unreadable, like extreme softening of the area. Or copy the surrounding area
into the the specified area. You usually have to use the -i option which sets
the area in which yuvinactive will work. If no additional option is given
yuvinactive stet the area to black. But you can use the -d -s -a -c
to tell yuvinactive that it shall do something different with that
area. You can only use one additional option. yuvinactive was built to remove
unwanted things like a logo, from the movie.
accepts the following options:
- Some help output
- Specifies the area yuvinactive shall work with. With this option the area
is set to black. There are no restrictions because of interlacing.
- -d num
- How much darker the area should be compared to the original color. This is
done by setting a lower value for the luma. The value is in percent from
the original luma.
- -s num
- Here you specify a certain color in the yuv format.
- -a num
- With this option the program uses on pixel and averages the surrounding
pixels with the same color to make the original less readable. The number
tells the the program how much pixels around the original pixel should be
overwritten with the same color. You have to use a even number here
- -c num
- Sets the number of surrounding pixels yuvinactive should use to copy them
into the given area. You have to use a even number here. yuvinactive uses
the lines above and below the specified area for copying them into the
Right, there are bugs hidden. The thing is not well tested, and not every option
might work. yuvinactive is in the first state of becoming a useful program.
This man page was originally written by Bernhard Praschinger.
If you have questions, remarks, problems or you just want to contact the
developers, the main mailing list for the MJPEG-tools is:
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