[opensuse] webcam on linux (yellowish or greenish images)
Hi list, I'm testing 2 different webcam models: a generic and cheap 1.3MP webcam and a Microsoft VX-1000 webcam. This 2 cams are properly recognized e working on Suse 10.2 - kernel 2.6.18.8-0.5-default ) by lsusb: Generic Webcam: ID 0c45:613c Microdia (using uvcvideo module) Microsft VX-1000: ID 045e:00f7 Microsoft Corp (using gspca module) Both webcams are working fine, but both models (using different modules drivers) present excessively yellowish or greenish images or saturated colors. With gspca, I tried to make some adjustments with autoexpo=0/1, usbgrabber=0/1, RBG=on/off ... Nothing working here... Adjustments of colors seem not make any satisfactory result. Same with generic cam with uvcvideo module ... Any tip ? -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
On Wed, 2007-09-19 at 09:14 -0300, Rejaine Monteiro wrote:
Hi list,
I'm testing 2 different webcam models: a generic and cheap 1.3MP webcam and a Microsoft VX-1000 webcam.
This 2 cams are properly recognized e working on Suse 10.2 - kernel 2.6.18.8-0.5-default ) by lsusb:
Generic Webcam: ID 0c45:613c Microdia (using uvcvideo module) Microsft VX-1000: ID 045e:00f7 Microsoft Corp (using gspca module)
Both webcams are working fine, but both models (using different modules drivers) present excessively yellowish or greenish images or saturated colors.
With gspca, I tried to make some adjustments with autoexpo=0/1, usbgrabber=0/1, RBG=on/off ... Nothing working here... Adjustments of colors seem not make any satisfactory result. Same with generic cam with uvcvideo module ...
Any tip ?
Probably off the wall, but the type of light source used to heavily influence the colour balance of 35mm cameras. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
Mike McMullin wrote:
On Wed, 2007-09-19 at 09:14 -0300, Rejaine Monteiro wrote:
Hi list,
I'm testing 2 different webcam models: a generic and cheap 1.3MP webcam and a Microsoft VX-1000 webcam.
This 2 cams are properly recognized e working on Suse 10.2 - kernel 2.6.18.8-0.5-default ) by lsusb:
Generic Webcam: ID 0c45:613c Microdia (using uvcvideo module) Microsft VX-1000: ID 045e:00f7 Microsoft Corp (using gspca module)
Both webcams are working fine, but both models (using different modules drivers) present excessively yellowish or greenish images or saturated colors.
With gspca, I tried to make some adjustments with autoexpo=0/1, usbgrabber=0/1, RBG=on/off ... Nothing working here... Adjustments of colors seem not make any satisfactory result. Same with generic cam with uvcvideo module ...
Any tip ?
Probably off the wall, but the type of light source used to heavily influence the colour balance of 35mm cameras.
Not off the wall at all, I think you hit the nail on the head. The light source will make a huge difference (remember sophomore "Electricity & Optics" courses?) A webCAM is a CAMera first so make sure you are feeding it the best lighting possible. (i.e. put a post lamp 'behind' the webcam so it shines from behind the webcam directly on you (of course eliminate the shadow) and check the results. -- David C. Rankin, J.D., P.E. Rankin Law Firm, PLLC 510 Ochiltree Street Nacogdoches, Texas 75961 (936) 715-9333 (936) 715-9339 fax www.rankinlawfirm.com -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
On Wednesday 19 September 2007 08:24, David C. Rankin wrote:
Mike McMullin wrote:
On Wed, 2007-09-19 at 09:14 -0300, Rejaine Monteiro wrote:
Hi list,
I'm testing 2 different webcam models: a generic and cheap 1.3MP webcam and a Microsoft VX-1000 webcam.
<snip>
Nothing working here... Adjustments of colors seem not make any satisfactory result. Same with generic cam with uvcvideo module ...
Any tip ?
Probably off the wall, but the type of light source used to heavily influence the colour balance of 35mm cameras.
Not off the wall at all, I think you hit the nail on the head. The light source will make a huge difference (remember sophomore "Electricity & Optics" courses?) A webCAM is a CAMera first so make sure you are feeding it the best lighting possible. (i.e. put a post lamp 'behind' the webcam so it shines from behind the webcam directly on you (of course eliminate the shadow) and check the results.
Not to open a can of worms here, but how do those webcams perform with Windows? That is the O/S that they were designed to work with. If the results are the same, then it is a lighting issue. If there is a big difference, then it's software. Fred -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
Mike McMullin escreveu:
Probably off the wall, but the type of light source used to heavily influence the colour balance of 35mm cameras.
I installed both webcams on Window, with equal light conditions, at the same room and all works fine.. For me, this is a driver (or not-compatible) reason ... -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
On Wed, 2007-09-19 at 11:26 -0300, Rejaine Monteiro wrote:
Mike McMullin escreveu:
Probably off the wall, but the type of light source used to heavily influence the colour balance of 35mm cameras.
I installed both webcams on Window, with equal light conditions, at the same room and all works fine.. For me, this is a driver (or not-compatible) reason ...
Agreed. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
participants (4)
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David C. Rankin -
Mike McMullin -
Rejaine Monteiro -
Stevens