compare a part of a picture

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I search a software which I can compare a part of a picture (jpg, png, ...) if it is different or not.

For example I want to compare the following 3 pictures on the left side of the red rectangle.

http://netzwerk.lima-city.de/bild1.png
http://netzwerk.lima-city.de/bild2.png
http://netzwerk.lima-city.de/bild3.png

The solution is that bild1 and bild2 are similar and bild3 not.

Hope somebody can help me there where I can find such a software.

kindly regards

Posted 23-Oct-11 20:49pm

haiflosse

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Mehdi Gholam · Answer 1 · 2011-10-23T20:57:00

Image similarity is a very advanced topic which involves a lot of high end mathematics.

Even the notion of similarity is vague as it could mean different things (byte comparison, similar colours, same picture but shifted etc.).

Take a look at the following :

http://stackoverflow.com/questions/75891/algorithm-for-finding-similar-images[^]

http://www.orfeo-toolbox.org/doxygen/ImageSimilarityMetricsPage.html[^]

http://www.tmoser.ch/typo3/22.0.html[^]