I recently checked the v3.60 and saw some good steps towards SEO in general and SEO related to images specifically.
However, the name of an image still changes to the product name and I do not see any option to disable it.
A product can have multiply images and not all of them have to show the exact product or product variation they took the name from.
For example, if I have the product "Awesome T-Shirt with custom logo" I will have an image showing it from the front, one from the back, another with a close-up of the logo, one red, one black, a couple of others with sample logos, etc.
Soon you end up with a dozen images all named "00000xx_awesome-t-shirt_with_custom_logo_550.jpeg" but in reality only one or two should have a name like that. The others should be named "00000xx_awesome-t-shirt_front", "00000xx_awesome-t-shirt_back", "00000xx_awesome-t-shirt_with_broken_heart", etc.
Since they always have the identifier in the name (which by the way is best to be at the end of the name) there will be no problem matching them to the correct product.
SEO of images is practically 4 things, file name, alt tags, title tags and the perfect combination of file size and image dimensions.
Right now only the first thing -file name- is missing from nopCommerce. Why not add it (as an option at least)?
PS: If anyone is interested in more image optimization tips you can ready
this . It's not the best guide but it's pretty good and covers pretty much everything.