I'm guessing you've googled it by now but if not, see prism-ai.com

free app that iirc uses googles deep dream algorithm to filter photos. Last time I heard there were caveats like; it works by uploading the image to google where it gets processed and it gets a "prisma" watermark. Now, all that may have changed since I last looked. I would say "Buyer Beware" but its free.

That said may not be a workable solution for the work being described originally in this thread. I mentioned it only 'cause it looks cool.