[Image-SIG] Make the difference between a picture and a photo

[Fredrik Lundh]

Seed wrote:

> Is there a way with or  without PIL python librairy to detect if an 
> image looks like a picture more than a photography and the opposite?

assuming you mean a (computer) drawing vs. a photo, a simple way is to 
count the number of colors in the image.  you can use the "getcolors" 
method with a suitable limit:

    http://mail.python.org/pipermail/image-sig/2008-January/004754.html

(this doesn't necessarily work for scanned art or more "photorealistic" 
graphics, of course.)

</F>