Cloudflare Workers — Simple OCR Number Extractor

This Cloudflare Worker receives an uploaded image, processes it using Cloudflare AI (LLaVA model), and extracts all numbers detected in the image.
It returns the primary numeric value as distance.

Useful for reading numbers from running watches, timers, digital meters, dashboards, and similar visual displays.

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🚀 Features

• Accepts image uploads via multipart/form-data
• Uses Cloudflare AI model: @cf/llava-hf/llava-1.5-7b-hf
• Extracts only numbers from the image
• Returns a clean numeric JSON result:

  { "distance": 5.35 }

📦 Endpoint

POST /
Content-Type: multipart/form-data

Required field

• file → JPG/PNG image

🧪 Example Requests

📌 Postman

• Method: POST
• Body: form-data
  • Key: file
  • Type: File
  • Value: Select your image

📌 cURL

curl -X POST \
  -F "file=@/path/to/image.jpg" \
  https://your-worker-url.workers.dev

📥 Example Response

{
  "distance": 5.35
}

If no number is detected:

{
  "distance": null
}

Maintainers

• Sandi Andrian andrian.sandi@gmail.com