egg/OCR
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
Files
cfe65158a33eab790c3caaaf5c2de40c54a71579
OCR/openspec/changes/archive/2025-12-11-use-cellboxes-for-table-rendering/specs/document-processing/spec.md
egg cfe65158a3 feat: enable document orientation detection for scanned PDFs 
- Enable PP-StructureV3's use_doc_orientation_classify feature
- Detect rotation angle from doc_preprocessor_res.angle
- Swap page dimensions (width <-> height) for 90°/270° rotations
- Output PDF now correctly displays landscape-scanned content

Also includes:
- Archive completed openspec proposals
- Add simplify-frontend-ocr-config proposal (pending)
- Code cleanup and frontend simplification

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
2025-12-11 17:13:46 +08:00

1.7 KiB
Raw Blame History

document-processing Specification Delta

MODIFIED Requirements

Requirement: Extract table structure (Modified)

The system SHALL use cell_boxes coordinates as the primary source for table structure when rendering PDFs, with HTML parsing as fallback.

Scenario: Render table using cell_boxes grid

  • WHEN rendering a table element to PDF
  • AND the table has valid cell_boxes coordinates
  • AND table_rendering_prefer_cellboxes is enabled
  • THEN the system SHALL infer row/column grid from cell_boxes coordinates
  • AND extract text content from HTML in reading order
  • AND map content to grid cells by position
  • AND render table borders using cell_boxes coordinates
  • AND place text content within calculated cell boundaries

Scenario: Handle cell_boxes grid mismatch gracefully

  • WHEN cell_boxes grid has different dimensions than HTML colspan/rowspan structure
  • THEN the system SHALL use cell_boxes grid as authoritative structure
  • AND map available HTML content to cells row-by-row
  • AND leave unmapped cells empty
  • AND log warning if content count differs significantly

Scenario: Fallback to HTML-based rendering

  • WHEN cell_boxes is empty or None
  • OR table_rendering_prefer_cellboxes is disabled
  • OR cell_boxes grid inference fails
  • THEN the system SHALL fall back to existing HTML-based table rendering
  • AND use ReportLab Table with parsed HTML structure

Scenario: Maintain backward compatibility

  • WHEN processing tables where cell_boxes grid matches HTML structure
  • THEN the system SHALL produce identical output to previous behavior
  • AND pass all existing table rendering tests