"> Douglas Douglas <[EMAIL PROTECTED]> writes: > >> Hi everybody. >> >> I have a paper form that I scan into an image. My user fills some >> circles in >> this paper form using black ink. Every form has ten rows with five >> circles each >> and the user fills only one circle for each row. >> >> I was wondering if I could use the Python Imaging Library to process >> these >> forms. I know the Image class is really powerful, but I can't think of a >> way of >> how to locate wich circle was filled.
I though about this problem once but never had occasion to do anything concrete. The key is to have some landmarks on the paper form that the analysis program can find. One can then convert between printed image coordinates and scanned image coordinates. This corrects for both variations in image placement on the sheet and sheet placement on the scanner. Terry Jan Reedy -- http://mail.python.org/mailman/listinfo/python-list
