I need a simple script or API that compares two OMR sheet images — one correct answer sheet and one student-submitted sheet. The API should detect filled bubbles, align sheets, and return a JSON response showing each question’s result (student answer, correct answer, match status, and overall score). Requirements: Input: Two image files (correct & student) via POST API. Output: JSON with per-question comparison and total accuracy. Should handle minor tilt or noise in images. Clean, well-commented code with setup instructions. Preferred Tech: Python (FastAPI/Flask + OpenCV) or PHP.