Digital photo convertor

nitinsane:
Recently I purchased a digital photo convertor that I can feed my photos and negatives to and it digitizes them and stores them on the SD card.

I was not happy with the quality and compression of the resultant images though.

I think I have necessary expertise to build something like this on my own using a stepper motors and line scanners (both of which I plan to salvage from an old scanner) with my trusty Arduino Uno.

It would be a fun project, but matching let alone beating the scanning quality of a modern scanner with a DIY solution seems very optimistic to me.

What sort of resolution and quality are you aiming to achieve, and for what sort of scan size?