Extracting Structured Data from Scanned Documents: OCR Plus Field Validation

📰 Dev.to · Iteration Layer

Extract structured data from scanned documents using OCR and field validation to streamline organizational workflows

intermediate Published 29 Apr 2026

Action Steps

Scan documents using an OCR tool like Tesseract-OCR to extract text
Apply field validation techniques to identify and correct errors in extracted data
Use machine learning algorithms to improve OCR accuracy and validate extracted fields
Integrate the OCR and validation process into a larger workflow using automation tools like Zapier or Apache Airflow
Test and refine the process to ensure high accuracy and reliability of extracted data

Who Needs to Know This

Data scientists, software engineers, and DevOps teams can benefit from this technique to automate data extraction and improve data quality

Key Insight

💡 Combining OCR with field validation can significantly improve the accuracy of extracted data from scanned documents