Invoice OCR Extraction Pipeline
Extract invoice fields from document images with OCR, validation, and review states.
A document AI starter project that teaches OCR extraction as a real pipeline: image preprocessing, text extraction, field parsing, validation rules, structured JSON output, and human review handoff.
Price: $29. Difficulty: Intermediate. Estimated completion time: 5-8 hours.
What is included
- Invoice UI scaffold
- Extraction API skeleton
- Validation checklist
- Sample schema
- Review workflow notes
Tech stack
- Python
- FastAPI
- OCR engine placeholder
- React
- Pydantic
- JSON export
- Docker-ready structure
Learning outcomes
- Understand document AI pipeline design
- Build an OCR extraction workflow for invoices
- Add validation and review paths for uncertain results
- Explain why document AI needs layout, text, and business rules