Vipkurum optical mark reading — the mark comes off the picture, not a lens
The optical mark reading tool we wrote for Vipkurum's education platform. No reader optics are involved: an image analysis layer written with OpenCV works over the picture of the sheet and lifts the marks out of it. The input is the image rather than the physical page. Sheets are uploaded from a scanner, the reading service is called through Node.js, and Laravel writes the result into a MySQL record. The limit travels with it: the tool was built for exam marking, so hotel front desks, wholesale order handling and till flows stay outside it.
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