Info
Unter Linux kann man mit v4l-utils die Webcam Settings verändern.
# KMJ.at / Karl M. Joch
# Webcam Einstellung und Steuerung unter Linux
# Install :
# apt-get install v4l-utils
v4l2-ctl -l
brightness 0x00980900 (int) : min=-64 max=64 step=1 default=13 value=13
contrast 0x00980901 (int) : min=0 max=64 step=1 default=25 value=25
saturation 0x00980902 (int) : min=1 max=128 step=1 default=44 value=44
hue 0x00980903 (int) : min=-40 max=40 step=1 default=6 value=6
gamma 0x00980910 (int) : min=72 max=500 step=1 default=145 value=145
gain 0x00980913 (int) : min=0 max=100 step=1 default=0 value=0
power_line_frequency 0x00980918 (menu) : min=0 max=2 default=1 value=1
sharpness 0x0098091b (int) : min=0 max=140 step=1 default=30 value=30
backlight_compensation 0x0098091c (int) : min=0 max=2 step=1 default=1 value=1
exposure_auto_priority 0x009a0903 (bool) : default=0 value=1
root@s01:~# v4l2-ctl –set-ctrl brightness=-30
root@s01:~# v4l2-ctl –set-ctrl saturation=1
v4l2-ctl -l
brightness 0x00980900 (int) : min=-64 max=64 step=1 default=13 value=-30
contrast 0x00980901 (int) : min=0 max=64 step=1 default=25 value=25
saturation 0x00980902 (int) : min=1 max=128 step=1 default=44 value=1
hue 0x00980903 (int) : min=-40 max=40 step=1 default=6 value=6
gamma 0x00980910 (int) : min=72 max=500 step=1 default=145 value=145
gain 0x00980913 (int) : min=0 max=100 step=1 default=0 value=0
power_line_frequency 0x00980918 (menu) : min=0 max=2 default=1 value=1
sharpness 0x0098091b (int) : min=0 max=140 step=1 default=30 value=30
backlight_compensation 0x0098091c (int) : min=0 max=2 step=1 default=1 value=1
exposure_auto_priority 0x009a0903 (bool) : default=0 value=1