Wanted: Cheap OMR (Optical Mark Recognition) Component for detecting checkboxes

I need a cheap software component that integrates into .net which can detect the checkboxes in a scanned document, so some sort of OMR component.

Unfortunately I cannot find a component that doesn’t require you to purchase an entire suite of software costing many thousands of dollars.

Does anyone know of anything that might be suitable?

For this type of software, enterprise, you are not going to find it for cheap. My previous employer used software similar to what you need, and it set him back around $4,000. The software he used was to detect SSN’s.