I have a number of .jpeg from the websites of musicians. These images are comprised of posters for upcoming shows and band photos (photos of the band in real life).
Here is an example poster:
I am not well-versed in any modern techniques or algorithms (if they exist?), but this is what I thought I might look for:
Text in the image is usually a dead giveaway of a poster.
Maybe realistic photos (ie. non-posters) follow a different color distribution?
Posters are probably less likely to have faced in them - but that's a pretty weak assertion.
Is there any classification algorithm that can detect if an image is a poster?