Am 01.04.2011, 20:30 Uhr, schrieb Charlie Clark
<charlie.cl...@clark-consulting.eu>:
Hi,
I need to check lot of images to see if they have the right logo in
them. Fortunately I know the co-ordinates of where the logo in the image
should be but I'm not sure on the best way to compare a selection from
the image with a template. Currently I'm cropping the target image to
the right size and comparing it with ImageChops.difference() with the
template but I'm not sure how to interpret the results - I had hoped for
either a largely black or white image but I'm largely getting the
inverse of the logo.
Any tips?
Gah, search a little harder and I find, of course, that effbot has already
answered this!
http://effbot.org/zone/pil-comparing-images.htm
Charlie
--
Charlie Clark
Managing Director
Clark Consulting & Research
German Office
Helmholtzstr. 20
Düsseldorf
D- 40215
Tel: +49-211-600-3657
Mobile: +49-178-782-6226
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