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Old 08-03-2005, 08:02 AM   #1
fieldyweb
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Registered: Jun 2005
Location: Wycombe, England
Distribution: Mepis 3.4.3 , Ubuntu & Damm Small Linux
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Logitech Quickcam express make the picture brighter


i wouldn't have thought getting a Webcam working was so dammed hard. I have bought a NEW Logitech Quickcam Express, and it works, i thin it uses SPCA5xx drivers... (see below from DMESG)

I load up gnome now as root, and i don't get the error message i got with my old webcam (cheapo windows only device) and if i load up CamStream i get a black picture, if i change the brightness with the camstream app, i can see myself... but its still very dark..

Does anyone know if there is a config file i can change to increast the brightness? from reading on the web the camera ha an autobrighness feature, which may be causing the problem..

the driver IS working, the camera appears to be functional, its just a bit too dark..

Fedora core 4

Linux Kernel - 2.6.12-1.1398_FC4

dmesg shows

Linux video capture interface: v1.00
/home/david/.Trash/spca5xx-20050701.tar.gz_FILES/spca5xx-20050701/drivers/usb/spca5xx.c: USB SPCA5xx camera found. Type QC Express (unknown CCD)
/home/david/.Trash/spca5xx-20050701.tar.gz_FILES/spca5xx-20050701/drivers/usb/spca5xx.c: [spca5xx_probe:8652] Camera type GBGR
usbcore: registered new driver spca5xx
/home/david/.Trash/spca5xx-20050701.tar.gz_FILES/spca5xx-20050701/drivers/usb/spca5xx.c: spca5xx driver 00.57.00 registered
 
Old 08-06-2005, 05:49 AM   #2
otchie1
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just change the application that you are using to view the image as camstream is a bit simple.

Xawtv is good but as you are using spca5xx device how wbout spca-viewer. Assuming that it is the only video device on your system then the commands would be either
Code:
xawtv -device /dev/video1
or
Code:
spcaview -d /dev/video1
I prefer spcaview and but xawtv even has a brightness control :-)
 
Old 08-06-2005, 09:40 AM   #3
fieldyweb
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Registered: Jun 2005
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both worked equally as well than you for your help, I hav also got GQCam working, which i will use for the time being as i can get it brighter, i think there is just not enough light in the room...

Next step is to get a webcam working via the webserver..
 
  


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