Detect stamps (seals) on image
Dear forum,
I have a lot of images of documents, where I need to detect stamps. I couldn't make a solution that would automatically adjust to different kinds of images.
So here is my offer. I am offering $100 to anyone who can write a piece of python code (and share it with everyone here), that would scan the following images for stamps and return only the cropped part of the image with the stamp itself. The stamp must be visible fully.
http://data26.i.gallery.ru/albums/sms... (soft) http://data27.i.gallery.ru/albums/sms... (photo) http://data26.i.gallery.ru/albums/sms... (photo) http://data27.i.gallery.ru/albums/sms... (positioned incorrectly) http://data27.i.gallery.ru/albums/sms... (flares) http://data27.i.gallery.ru/albums/sms... (scan marks)
Seriously? Did you even try? Here's a hint. Those seals are blue. That should get you 90% of the way there, looking for circles should do the rest.
I have already tried that approach, but due to the nature of documents (some of them are photos), I get either too much blue, or too much text noise. I either can't retrieve a single circle, or I get many false positive circles. There is no "one-fits-all" solution that would cover all my images.
Offer still up.