I haven't run an online chip scanning seminar in quite a while, if there is enough interest I can schedule one. But I do have a page of tips and hints for photographing and scanning casino chips. You can request one by email to me. Here are some basics ...

You can better results with a camera, but the equipment is expensive and complicated to set up, so scanning is easier.

For good results with a scanner ...
1) Remove the chip from its holder, if necessary
2) Remove surface dirt on the chip, if necessary
3) Put the chip near the top right corner of the scanner, but at least an inch away from each side
4) Put a neutral gray card on top of the chip
5) Set the scanner for at least 200 DPI, 300 DPI is ideal
6) Turn off any scanner image correction settings

For good results with a camera ...
1) Put the chip on a level solid color background, neutral gray if possible
2) You should be in shaded light, no direct light, especially sunlight
3) Take the picture from directly above (no angles) the chip, as close to the chip as possible
4) Automatic camera settings should be OK, except NO FLASH