pdftract/crates
jedarden 7c5206f08e feat(pdftract-347): implement hybrid grid-cell evaluator
Add 8x8 grid decomposition for mixed-content page detection.

Implements Phase 5.1.3 hybrid detection:
- GridClassifier: 8x8 grid (64 cells) per page
- Cell classification: vector (text+validity), scanned (image,no-text), mixed
- Hybrid trigger: >=10 vector cells AND >=10 scanned cells (>=15% each)
- Returns scanned cell indexes for downstream OCR-only-on-cells routing

Acceptance criteria:
- PASS: Critical test (text header + scanned body) -> Hybrid with correct cells
- PASS: Below threshold (9+9 cells) -> NOT Hybrid
- PASS: Determinism (BTreeSet for stable serialization)
- PASS: Cells exposed for Phase 5.2 OCR routing

Refs: bead pdftract-347, plan line 1838

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-23 13:49:14 -04:00
..
pdftract-cer-diff docs(pdftract-aawrz): add LICENSE-MIT and LICENSE-APACHE files 2026-05-23 10:36:28 -04:00
pdftract-cli feat(pdftract-4sky1): implement doctor exit code policy 2026-05-23 07:27:09 -04:00
pdftract-core feat(pdftract-347): implement hybrid grid-cell evaluator 2026-05-23 13:49:14 -04:00
pdftract-libpdftract feat(pdftract-bf-2y2rp): implement lazy stream decoding for PDF extraction 2026-05-23 12:30:26 -04:00
pdftract-py docs(pdftract-aawrz): add LICENSE-MIT and LICENSE-APACHE files 2026-05-23 10:36:28 -04:00