I suggest that you re-think the word 'mean'. Who are you being mean to? Would you be mean to your former husband? Would you be mean to yourself?
Why dust them off? Start my boxing them and storing in a closet, out of site. The longer they are there, the more detached you will be from them and the marriage. Maybe later you can dispose of them. Maybe family members and friends that are in the photos may want some.
I'll be giving mind to my daughter. What she does after that will be out of my control and I won't ask either!
When I moved from the house to an apartment, there were a few personal things that I simply could not throw in the trash. I left them at the house and told the cleaning lady that they needed to disappear but I couldn't make it happen. There were thousands of slides of our married life. Our daugher didn't want them either.
Start moving forward, one step at a time.