Avision AV810C+ - Manual (Page 45)

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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.