How to manage the white balance in webcam
On Linux my webcam works fine, but when using artificial lighting the white-balance is too reddish. Color look fine with natural illumination.
Is there a way to calibrate the colors or have some form of auto-adjustment which works?
I used guvcview to tinker with the settings but haven't managed to find a suitable combination of settings to show natural colors.
camera color-management
edited Dec 21 '17 at 10:07
SouravGhosh
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asked Dec 21 '17 at 9:51
To DoTo Do
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bumped to the homepage by Community♦ 13 mins ago
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add a comment |
On Linux my webcam works fine, but when using artificial lighting the white-balance is too reddish. Color look fine with natural illumination.
Is there a way to calibrate the colors or have some form of auto-adjustment which works?
I used guvcview to tinker with the settings but haven't managed to find a suitable combination of settings to show natural colors.
camera color-management
edited Dec 21 '17 at 10:07
SouravGhosh
481311
asked Dec 21 '17 at 9:51
To DoTo Do
465320
bumped to the homepage by Community♦ 13 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
Did you try VLC? It has a lot video related tools.
– baselab
Dec 21 '17 at 11:33
add a comment |
On Linux my webcam works fine, but when using artificial lighting the white-balance is too reddish. Color look fine with natural illumination.
Is there a way to calibrate the colors or have some form of auto-adjustment which works?
I used guvcview to tinker with the settings but haven't managed to find a suitable combination of settings to show natural colors.
camera color-management
edited Dec 21 '17 at 10:07
SouravGhosh
481311
asked Dec 21 '17 at 9:51
To DoTo Do
465320
On Linux my webcam works fine, but when using artificial lighting the white-balance is too reddish. Color look fine with natural illumination.
Is there a way to calibrate the colors or have some form of auto-adjustment which works?
I used guvcview to tinker with the settings but haven't managed to find a suitable combination of settings to show natural colors.
camera color-management
camera color-management
edited Dec 21 '17 at 10:07
SouravGhosh
481311
asked Dec 21 '17 at 9:51
To DoTo Do
465320
edited Dec 21 '17 at 10:07
SouravGhosh
481311
asked Dec 21 '17 at 9:51
To DoTo Do
465320
edited Dec 21 '17 at 10:07
SouravGhosh
481311
edited Dec 21 '17 at 10:07
SouravGhosh
481311
edited Dec 21 '17 at 10:07
SouravGhosh
481311
481311
asked Dec 21 '17 at 9:51
To DoTo Do
465320
asked Dec 21 '17 at 9:51
To DoTo Do
465320
asked Dec 21 '17 at 9:51
To DoTo Do
465320
465320
bumped to the homepage by Community♦ 13 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
bumped to the homepage by Community♦ 13 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
Did you try VLC? It has a lot video related tools.
– baselab
Dec 21 '17 at 11:33
add a comment |
Did you try VLC? It has a lot video related tools.
– baselab
Dec 21 '17 at 11:33
Did you try VLC? It has a lot video related tools.
– baselab
Dec 21 '17 at 11:33
Did you try VLC? It has a lot video related tools.
– baselab
Dec 21 '17 at 11:33
add a comment |
1 Answer
1
active
oldest
votes
At least on my webcam, the v4l2-ctl -l command shows two settings related to white balance:
# v4l2-ctl -l
[...]
white_balance_temperature_auto (bool) : default=1 value=1
[...]
white_balance_temperature (int) : min=2800 max=6500 step=1 default=4000 value=4000 flags=inactive
[...]
I must set the white_balance_temperature_auto setting to 0 before the white_balance_temperature setting will have any effect.
# v4l2-ctl -c white_balance_temperature_auto=0
# v4l2-ctl -c white_balance_temperature=3000 # or whatever value you want
Note that the white_balance_temperature setting controls what the camera assumes the lighting environment to be, so decreasing the value makes the camera assume the ambient light is more reddish, and so it will make the picture more bluish to compensate.
Use the -d option to use a specific video divice like -d /dev/video0.
edited Mar 30 '18 at 18:56
Boltgolt
31
answered Dec 21 '17 at 11:51
telcoMtelcoM
16.2k12144
add a comment |
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1 Answer
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1 Answer
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At least on my webcam, the v4l2-ctl -l command shows two settings related to white balance:
# v4l2-ctl -l
[...]
white_balance_temperature_auto (bool) : default=1 value=1
[...]
white_balance_temperature (int) : min=2800 max=6500 step=1 default=4000 value=4000 flags=inactive
[...]
I must set the white_balance_temperature_auto setting to 0 before the white_balance_temperature setting will have any effect.
# v4l2-ctl -c white_balance_temperature_auto=0
# v4l2-ctl -c white_balance_temperature=3000 # or whatever value you want
Note that the white_balance_temperature setting controls what the camera assumes the lighting environment to be, so decreasing the value makes the camera assume the ambient light is more reddish, and so it will make the picture more bluish to compensate.
Use the -d option to use a specific video divice like -d /dev/video0.
edited Mar 30 '18 at 18:56
Boltgolt
31
answered Dec 21 '17 at 11:51
telcoMtelcoM
16.2k12144
add a comment |
At least on my webcam, the v4l2-ctl -l command shows two settings related to white balance:
# v4l2-ctl -l
[...]
white_balance_temperature_auto (bool) : default=1 value=1
[...]
white_balance_temperature (int) : min=2800 max=6500 step=1 default=4000 value=4000 flags=inactive
[...]
I must set the white_balance_temperature_auto setting to 0 before the white_balance_temperature setting will have any effect.
# v4l2-ctl -c white_balance_temperature_auto=0
# v4l2-ctl -c white_balance_temperature=3000 # or whatever value you want
Note that the white_balance_temperature setting controls what the camera assumes the lighting environment to be, so decreasing the value makes the camera assume the ambient light is more reddish, and so it will make the picture more bluish to compensate.
Use the -d option to use a specific video divice like -d /dev/video0.
edited Mar 30 '18 at 18:56
Boltgolt
31
answered Dec 21 '17 at 11:51
telcoMtelcoM
16.2k12144
add a comment |
At least on my webcam, the v4l2-ctl -l command shows two settings related to white balance:
# v4l2-ctl -l
[...]
white_balance_temperature_auto (bool) : default=1 value=1
[...]
white_balance_temperature (int) : min=2800 max=6500 step=1 default=4000 value=4000 flags=inactive
[...]
I must set the white_balance_temperature_auto setting to 0 before the white_balance_temperature setting will have any effect.
# v4l2-ctl -c white_balance_temperature_auto=0
# v4l2-ctl -c white_balance_temperature=3000 # or whatever value you want
Note that the white_balance_temperature setting controls what the camera assumes the lighting environment to be, so decreasing the value makes the camera assume the ambient light is more reddish, and so it will make the picture more bluish to compensate.
Use the -d option to use a specific video divice like -d /dev/video0.
edited Mar 30 '18 at 18:56
Boltgolt
31
answered Dec 21 '17 at 11:51
telcoMtelcoM
16.2k12144
At least on my webcam, the v4l2-ctl -l command shows two settings related to white balance:
# v4l2-ctl -l
[...]
white_balance_temperature_auto (bool) : default=1 value=1
[...]
white_balance_temperature (int) : min=2800 max=6500 step=1 default=4000 value=4000 flags=inactive
[...]
I must set the white_balance_temperature_auto setting to 0 before the white_balance_temperature setting will have any effect.
# v4l2-ctl -c white_balance_temperature_auto=0
# v4l2-ctl -c white_balance_temperature=3000 # or whatever value you want
Note that the white_balance_temperature setting controls what the camera assumes the lighting environment to be, so decreasing the value makes the camera assume the ambient light is more reddish, and so it will make the picture more bluish to compensate.
Use the -d option to use a specific video divice like -d /dev/video0.
edited Mar 30 '18 at 18:56
Boltgolt
31
answered Dec 21 '17 at 11:51
telcoMtelcoM
16.2k12144
edited Mar 30 '18 at 18:56
Boltgolt
31
edited Mar 30 '18 at 18:56
Boltgolt
31
edited Mar 30 '18 at 18:56
Boltgolt
31
31
answered Dec 21 '17 at 11:51
telcoMtelcoM
16.2k12144
answered Dec 21 '17 at 11:51
telcoMtelcoM
16.2k12144
answered Dec 21 '17 at 11:51
telcoMtelcoM
16.2k12144
16.2k12144
add a comment |
add a comment |
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Did you try VLC? It has a lot video related tools.
– baselab
Dec 21 '17 at 11:33