Avision AVA3 400 - Manual (Page 47)

Scanner Operation
4-20
Color Matching:
Adjusts the color quality of the image so that it
comes close to that of the original. This function
uses default parameters to adjust the image.
Before Color Matching After Color Matching
Quality/Speed Mode:
Choose Speed Mode if you need to speed up your
scanning task. Choose Quality Mode if you need a
better quality of your scanning result.