Improve OCR on pale grey / low-res dot-matrix print #2

ilia · 2026-07-13T22:15:20-05:00

ilia commented

2026-07-13 22:15:20 -05:00

Summary

Add Lab gamma darkening (darken_print) and gamma step in enhance_for_ocr for pale grey / TD-style ribbon ink
Optional 1.5× cubic upscale for crops under 1800px (skipped on sharp ~2k captures)
Add .gitleaks.toml so pre-commit secret scanning can load default rules

Test plan

pytest tests/test_enhance.py (5 passed locally)
No Gitea Actions workflows configured on this repo; master branch protection has status checks disabled

## Summary - Add Lab gamma darkening (`darken_print`) and gamma step in `enhance_for_ocr` for pale grey / TD-style ribbon ink - Optional 1.5× cubic upscale for crops under 1800px (skipped on sharp ~2k captures) - Add `.gitleaks.toml` so pre-commit secret scanning can load default rules ## Test plan - [x] `pytest tests/test_enhance.py` (5 passed locally) - [ ] No Gitea Actions workflows configured on this repo; master branch protection has status checks disabled

ilia added 1 commit 2026-07-13 22:15:20 -05:00

Improve OCR on pale grey / low-res dot-matrix print. a253db6adb

Add Lab gamma darkening and optional 1.5x cubic upscale (crops under 1800px) so faint TD-style ribbon ink is readable without slowing sharp captures. Add .gitleaks.toml so the pre-commit secret scan can load default rules.

ilia force-pushed feature/ocr-grey-print-upscale from a253db6adb to 764a0626b5

2026-07-13 22:16:04 -05:00

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ilia merged commit b11f46b00f into master

2026-07-13 22:16:15 -05:00

ilia deleted branch feature/ocr-grey-print-upscale

2026-07-13 22:16:15 -05:00

ilia referenced this issue from a commit

2026-07-13 22:16:17 -05:00

Merge pull request 'Improve OCR on pale grey / low-res dot-matrix print' (#2) from feature/ocr-grey-print-upscale into master

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Reference: ilia/PaperPod#2