Add an option to accept scans with 3 circles only instead of 4 (Feature #197)
AMC currently accepts only scans with the 4 corner circles.
Even if less reliable, this should be interesting to accept also scans with 3 circles. See .
Just want to add comment that this feature has been tremendously helpful in our school. Due to carelessness on the part of photocopy staff we ended up with thousands of answer sheets with only three full marks, fourth one being distorted. We realized the mistake only after the answer sheets had already been filled by the students. Stable version of AMC couldn't process the papers even after we manually repaired 4th corner mark by using black marker. However, after updating to testing version we could process all exam sheets (several thousand in total) without a single glitch.