The moment your touch a pixel of that image with Photoshop you should be able to copyright it, right?
Any 'de minimis' changes will probably lead to rejection.
"The Copyright Office agreed that the parts of the painting that Allen had altered with Adobe constituted original work. However, it maintained that other parts generated by AI could not be copyrighted. In other words: Allen could copyright parts of the painting, but not the whole thing."
https://www.wired.com/story/ai-art-copyright-matthew-allen/
For now, it seems the issue is still being disputed