As someone who has had my own copyright design and work images "poached" by others, in the past, my advice to you is to contact the copyright owners before attempting to do anything, clearly stating the use / modifications you would wish to do, and the purpose for which the image is intended. And ASK.
You will usually find the owner reasonable, indeed often very happy to have images used,often without fee, especially if there is some credit given to them, and/or it is in a good cause. If you don't, they may, as I did, require a whole print run to be destroyed, or they may request a fee. It's not a good idea to "just go ahead", because other people have blithely done so, and apparently got away with it.
TY