within the last 6 months or so, I came across a program (freeware) which claimed to let you make any of your images have the "look" of another image.
In particular, if you had an image of say a Rembrandt painting, you could copy that look to one of your own images. No doubt photoshop experts can do that sort of thing, but I haven't got photoshop.
Of course now that I want to play with it for a particular purpose, I can't for the life of me remember where I saw it or what it was called. Does anyone know of it?