My webcam gives me very dark image, so I tried to find out how to adjust.
v4l2ucp - Video4Linux Universal Control Panel
A GUI control panel. It's very easy to adjust.
v4lctl of Xawtv
This program is part of Xawtv, a command-line tool. You can do with it like:
Unfortunately, my webcam has only small change on brightness and totally no difference on contrast.
v4l2ucp - Video4Linux Universal Control Panel
A GUI control panel. It's very easy to adjust.
v4lctl of Xawtv
This program is part of Xawtv, a command-line tool. You can do with it like:
$ v4lctl -c /dev/video0 list attribute | type | current | default | comment -----------+--------+---------+---------+------------------------------------- norm | choice | (null) | (null) | input | choice | tv8532 | tv8532 | tv8532 bright | int | 399 | 399 | range is 1 => 767 contrast | int | 32767 | 32767 | range is 0 => 65535 $ v4lctl -c /dev/video0 bright 80% $ v4lctl -c /dev/video0 contrast 75% $ v4lctl -c /dev/video0 list attribute | type | current | default | comment -----------+--------+---------+---------+------------------------------------- norm | choice | (null) | (null) | input | choice | tv8532 | tv8532 | tv8532 bright | int | 613 | 399 | range is 1 => 767 contrast | int | 49151 | 32767 | range is 0 => 65535You can
man v4lctl
.Unfortunately, my webcam has only small change on brightness and totally no difference on contrast.
nice.i want full details of how to connect web camera interfacing with beagle board xm
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