Scan cleanup: archive legibility beats paper-white
`clean-scanned-photo-online` serves contracts, invoices, and forms where shadows, folds, and moiré hurt OCR and legal readability. Aim for stable contrast and crisp strokes—not plastic paper. Over-smoothing blurs signatures and smears digits. Batch jobs need shared scanner settings and a gold sample; contested materials favor unedited masters as evidence. Color seals and cross-page hinge marks are channel-sensitive—skip global bleach; balance red seals with black text in tight local adjustments.
Recommended steps for contract and receipt scans
- In `clean-scanned-photo-online`, declare intent (archive, litigation, screen-only), longest edge, and color profile.
- After light flattening and dust removal, inspect small type, cross-page seals, and handwriting at 100–200% for breaks.
- Store PDF or image outputs beside untouched TIFF masters with resolution and ICC notes for future audits.
Scanned document cleanup Q&A
Hundreds of contract pages—how do you unify “clean enough” without every operator disagreeing?
Define a gold sample with DPI, acceptable paper tooth, and signature edge sharpness; pages worse than the sample get individual passes.
After `clean-scanned-photo-online`, color company seals look weak or broken—what do you suspect first?
Usually global contrast or the red channel was crushed—limit adjustments around the seal and keep an ungraded master scan.
Scanner color drifts across devices—how should archives document it?
Log scanner model, driver color setup, and master path per batch; embed a short parameter note inside contract PDFs.
Using `clean-scanned-photo-online` for contract archives—what should we lock in the color path?
Record scanner settings and color characterization; ship a short parameter note so later disputes cannot claim silent regrading.
Paper tooth flattened to chalky white?
Ease texture removal; preserve paper grain via high-pass before mild contrast instead of global skin-smoothing passes.