azeem-web-dev/omr-scanner — reverse-engineered prompt

Build me a desktop app for scanning and grading OMR answer sheets, the kind schools or coaching centers could use for exams. I want to load a PDF or image of a filled sheet, detect the marked bubbles reliably, read student details like roll number, name, or barcode when available, compare answers with an answer key, and show the score right away. It should also let me review doubtful detections manually, preview the sheet, and save everything cleanly.

Please include a way to design or load different sheet templates, manage a small candidate database, and generate useful reports and analytics after scanning a batch. Exporting results to common formats would be great, and if there is already a simple API or upload flow in the project, wire that up too. Make the interface feel practical and polished, with settings that persist and sensible defaults. Add whatever tests or sample data you need so I can run it and try it quickly. Look up current docs online if you need to.