nice construction, thanks for sharing.
well, I´m working for two years with the PRO 9000 - and sometimes find settings being chanced or being not saved switching between the different needs - but I can not find some rule.
First: (if you do not need the cam- or Logitech's videoconference Vid) Install only the driver. To do this: In the installation options: disable Vid installation, disable cam software. Now you can choose: instal driver only.
(If you need the cam for other things too, the logitech cam software pops up too if DAVID calls the cam. Close this software)
DAVID 2.4.3 opened the cam at 1600x1200 by default. Now with 2.4.4 Sven set that default setting to VGA 640x480. You can change the resolution of the cam in the calibration step before calibrating. Do not forget to set a higher framerate in this dialog too!! When you close DAVID and restart it, the cam should be at the set res again (if this was the last used cam).
At 640x480 you should get around 30fps, at 800x600 the framerate should be around 20fps, at 960x720 around 15fps, at 1600x1200 only 5 fps.
To get this framerate, you have to do two things:
Set the framerate to the highest value possible in the resolution dialog on DAVID's calibration step
Pay attention on the exposure time in the cam settings (third tab) - it is rather logical: if you set this value to 1/8 sec, you will get only 8 frames per second, for 8*1/8= 1
@ Saving the exposure settings:
The Pro 9000 driver makes it possible to set many exposure times, but saves only in 8 grades. Values between this grades fall back to the next longer exposure time:
e.g: If you set 1/20sec for scanning, close the driver dialog, switch to another setting (maybe the texture settings ) and back to the scanning settings you will find the exposure at 1/16. So use only settings on the exposure 1/8, 1/16, 1/32,1/64..... otherwise you will get wired...
Logitech ships with a automatic RightLight setting function. Disable this function on the third tab (since driver version 11)
There are to many things you´ve to consider setting the cam to give ideal values. Color and surface quality and profile of the object, ambient light....
Hints for the scanning settings: I always set the longest saveable exposure possible (e.g 1/16 for a scan at 15fps or 1/32 for scans at 30 or 20 fps) and saturation on zero. That's the basis I adjust brightness, contrast and sensitivity on...
Another hint on ambient light:
With a green laser you can scan in some darker, but normal ambient light. But beware of neon light!! Its flickering together with the rolling shutter may create moving zones of brightness in the cam picture.
Hope that helps