Google Vision Handwriting Recognition Works!
Got Google Vision working on Android mobile. Example picture worked perfectly.
Testing on Android
The entire workflow runs on Android mobile using Termux:
- Set up Google Vision API with service account credentials
- Transferred credentials securely via Tailscale
- Ran the Python script directly on the phone
- Recognition accuracy was excellent
Example Test
Tested with a hand-drawn workflow diagram showing the process: paper → Google Vision API → GitHub. The API accurately recognised the handwritten text written in casual handwriting.
Results
Text accuracy: Excellent - recognised handwritten notes accurately
Setup simplicity: Straightforward once grpcio installation sorted
API response time: Fast enough for real-time use
See the complete working code on GitHub.
The gvision-text repository contains the full working implementation and setup instructions.