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OCR Quality & Accuracy

Evaluate accuracy on your own documents

At SanadGah, instead of numeric claims, we evaluate processing accuracy on a sample of your organization's real documents — with defined criteria, transparent reporting, and a focus on Persian printed documents.

Evaluation method

A sample of your organization's Persian printed documents is collected, and the OCR output is compared against reference text. The final report includes the overall accuracy rate and a breakdown of errors.

Evaluation metrics

Evaluation is performed based on three metrics: Character Accuracy, Word Accuracy, and accuracy of key fields in contracts and invoices.

Error analysis

Errors are reported broken down by type: connected letters, Persian numerals, punctuation, and specialized terms — to identify which aspect requires improvement.

Continuous improvement

Linguistic post-processing (NLP) is applied to OCR output to correct common Persian errors. This layer is continuously improved with new evaluation data.

Sample report

After evaluation, a full report — including the accuracy rate, sample output, error analysis, and a deployment model recommendation — is made available to the organization.

Current limitations

The current focus is on Persian printed documents. Handwritten documents, low-quality historical archives, and texts with non-standard fonts may have lower accuracy and are on the product roadmap.

Ready to evaluate on your own documents?

Request Evaluation