Camera Settings Handling in DAVID

In DAVID, you need to adjust camera settings (exposure, brightness, gain, …) manually. However, DAVID can read and remember those settings for three different situations:

• Camera calibration
• Scanning
• Texture grabbing

DAVID has three buttons that lead you to the camera settings. DAVID remembers those settings three times (separately for the three “situations”) and sends them back to the camera when you e.g. move between the calibration and scanning page or when you switch between scanning and texture grabbing.

This feature depends very much on the camera drivers. If this feature makes problems with your hardware, you can switch it off: After you select a camera, DAVID askes you whether you want to allow this or not.
To switch this feature on or off, just select a different camera (e.g. Video Grabber), then select your camera, and you can choose “Yes” or “No” again.

The following list contains information about different camera models, driver versions, and how well DAVIDs camera parameter management works with them. Please help by share experiences with your camera here!

• Some bright exposure settings can be restored only approximately (this is not really Logitech's fault, but a basic principal problem as a weakness of the WDM driver interface - f.y.i. see here)
• Avoid exposure setting 1/1000 s
• Great image quality
• No real problem in practice

• Most dark exposure settings will not be restored correctly, so you will have to readjust often. We recommend to go back to driver version 11.5 which you can find here: http://logitech-louk.navisite.net/web/ftp/pub/techsupport/quickcam/qc1150.exe

• does not remember the exposure setting reliably

• average image quality
• settings in rather coarse steps

• Automatic exposure adjustment cannot be switched off
• average image quality
• terrible windows keep popping up (?)

• Automatic exposure adjustment cannot be switched off
• many defective pixels
• average image quality