| 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`](https://huggingface.co/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](https://github.com/huggingface/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. | |