test(ocr): add degraded regression dataset + improve rotation/low-contrast OCR#359
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Hi 👋 Appreciate this PR! The CI is flagging a failing check — could you take a peek at the failed job and push a fix? Happy to help if you need a hand 🙏 |
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Key files:
Dataset: app/ai-service/regression_harness/dataset/degraded/
ground_truth.json (deliberately degraded samples)
documents/ contains all referenced PNG variants
Preprocessing: app/ai-service/services/preprocessing.py (CLAHE contrast normalization)
OCR: app/ai-service/services/ocr.py (rotation/orientation sweep 0/90/180/270)
CI: .github/workflows/ocr-regression-degraded.yml (runs degraded suite; enforces pass_ratio>=0.9 and accuracy>=0.6)
closes #280