Re: Comparing images
"Charlie Clark" <[email protected]>
| Newsgroups | gmane.comp.python.image |
|---|---|
| Organization | Clark Consulting & Research |
| Message-ID | <[email protected]> |
Am 01.04.2011, 20:30 Uhr, schrieb Charlie Clark <[email protected]>: > 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 _______________________________________________ Image-SIG maillist - [email protected] http://mail.python.org/mailman/listinfo/image-sig