Legacy ImageMagick Discussions Archive

Hello,

I have images of documents that contain circle stamps (seals) on them.
Example: http://data28.i.gallery.ru/albums/smsdo ... d0b2ce.jpg

Documents can be of different sizes and colours. Stamps can be different colours and in different positions (but only 1 stamp per page)

Is it possible to detect the stamp and save it in another image?

Thank you.

What visually defines the stamp? In this case, the stamp has high colour saturation.
The result is: Using that result:

This works for high-contrast, but what about softer or black&white images, etc...?
Thank you for the quick reply. I would like to chip in $50 for beer if this is a easy problem to solve.

http://data26.i.gallery.ru/albums/smsdo ... 960bf2.jpg (soft)
http://data27.i.gallery.ru/albums/smsdo ... 46fd59.jpg (photo)
http://data26.i.gallery.ru/albums/smsdo ... b374d9.jpg (photo)
http://data27.i.gallery.ru/albums/smsdo ... 50bbdd.jpg (positioned incorrectly)
http://data27.i.gallery.ru/albums/smsdo ... 934d43.jpg (flares)
http://data27.i.gallery.ru/albums/smsdo ... cf5ee3.jpg (scan marks)