metadata
title: OCR Math Captcha
emoji: 🔢
colorFrom: indigo
colorTo: blue
sdk: static
app_file: index.html
short_description: In-browser math captcha OCR, no server
models:
- arkhabbazan/ocr-math-captcha
OCR Math Captcha
In-browser demo of arkhabbazan/ocr-math-captcha, a TrOCR
fine-tune that reads short arithmetic captchas such as 26+7=? and then
evaluates the expression it read.
Inference runs client-side through transformers.js on ONNX weights — there is no backend, and images never leave the browser. Weights are downloaded once and cached by the browser.
Limitations. Training data was primarily synthetic, so unseen fonts and layouts degrade accuracy. Built for short single-line expressions at 130x30, not document OCR. Use only on images you are authorized to process.