I will digitize a couple of thousand pictures for my family and some of them range from 40-50 years ago, which means they are discolored and blurred.

The scanner I have doesn't have a good auto processing software (Canon Imageformula R40), it increases the contrast way too much and doesn't seem to understand that old photos get red with time.

So I was looking at ways to bulk process these images. It doesn't need to be perfect, it just need to improve a little bit. Does anyone has any tip?