2312b4cd66
Implement user-configurable PP-StructureV3 parameters to allow fine-tuning OCR behavior
from the frontend. This addresses issues with over-merging, missing small text, and
document-specific optimization needs.
Backend:
- Add PPStructureV3Params schema with 7 adjustable parameters
- Update OCR service to accept custom parameters with smart caching
- Modify /tasks/{task_id}/start endpoint to receive params in request body
- Parameter priority: custom > settings default
- Conditional caching (no cache for custom params to avoid pollution)
Frontend:
- Create PPStructureParams component with collapsible UI
- Add 3 presets: default, high-quality, fast
- Implement localStorage persistence for user parameters
- Add import/export JSON functionality
- Integrate into ProcessingPage with conditional rendering
Testing:
- Unit tests: 7/10 passing (core functionality verified)
- API integration tests for schema validation
- E2E tests with authentication support
- Performance benchmarks for memory and initialization
- Test runner script with venv activation
Environment:
- Remove duplicate backend/venv (use root venv only)
- Update test runner to use correct virtual environment
OpenSpec:
- Archive fix-pdf-coordinate-system proposal
- Archive frontend-adjustable-ppstructure-params proposal
- Create ocr-processing spec
- Update result-export spec
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
117 lines
5.9 KiB
Markdown
117 lines
5.9 KiB
Markdown
# result-export Specification
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## Purpose
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TBD - created by archiving change fix-v2-api-ui-issues. Update Purpose after archive.
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## Requirements
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### Requirement: Export Interface
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The Export page SHALL support downloading OCR results in multiple formats using V2 task APIs, with processing track information and enhanced structure data.
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#### Scenario: Export page uses V2 download endpoints
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- **WHEN** user selects a format and clicks export button
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- **THEN** frontend SHALL call V2 endpoint `/api/v2/tasks/{task_id}/download/{format}`
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- **AND** frontend SHALL NOT call V1 `/api/v2/export` endpoint (which returns 404)
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- **AND** file SHALL download successfully
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#### Scenario: Export supports multiple formats
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- **WHEN** user exports a completed task
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- **THEN** system SHALL support downloading as TXT, JSON, Excel, Markdown, and PDF
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- **AND** each format SHALL use correct V2 download endpoint
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- **AND** downloaded files SHALL contain task OCR results
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#### Scenario: Export includes processing track metadata
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- **WHEN** user exports a task processed through dual-track system
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- **THEN** exported JSON SHALL include "processing_track" field indicating "ocr" or "direct"
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- **AND** SHALL include "processing_metadata" with track-specific information
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- **AND** SHALL maintain backward compatibility for clients not expecting these fields
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#### Scenario: Export UnifiedDocument format
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- **WHEN** user requests JSON export with unified=true parameter
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- **THEN** system SHALL return UnifiedDocument structure
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- **AND** include complete element hierarchy with coordinates
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- **AND** preserve all PP-StructureV3 element types for OCR track
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### Requirement: Multi-Task Export Selection
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The Export page SHALL allow users to select and export multiple tasks.
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#### Scenario: Select multiple tasks for export
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- **WHEN** Export page loads
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- **THEN** page SHALL display list of user's completed tasks
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- **AND** page SHALL provide checkboxes to select multiple tasks
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- **AND** page SHALL NOT require batch ID from upload store (legacy V1 behavior)
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#### Scenario: Export selected tasks
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- **WHEN** user selects multiple tasks and clicks export
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- **THEN** system SHALL download each selected task's results in chosen format
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- **AND** downloaded files SHALL be named distinctly (e.g., `{task_id}_result.{ext}`)
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- **AND** system MAY provide option to download as ZIP archive for multiple files
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### Requirement: Export Configuration Persistence
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Export settings (format, thresholds, templates) SHALL apply consistently to V2 task downloads.
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#### Scenario: Apply confidence threshold to export
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- **WHEN** user sets confidence threshold to 0.7 and exports
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- **THEN** downloaded results SHALL only include OCR text with confidence >= 0.7
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- **AND** threshold SHALL apply via V2 download endpoint query parameters
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#### Scenario: Apply CSS template to PDF export
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- **WHEN** user selects CSS template for PDF format
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- **THEN** downloaded PDF SHALL use selected styling
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- **AND** template SHALL be passed to V2 `/tasks/{id}/download/pdf` endpoint
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### Requirement: Enhanced PDF Export with Layout Preservation
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The PDF export SHALL accurately preserve document layout from both OCR and direct extraction tracks with correct coordinate transformation and multi-page support.
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#### Scenario: Export PDF from direct extraction track
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- **WHEN** exporting PDF from a direct-extraction processed document
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- **THEN** the PDF SHALL maintain exact text positioning from source
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- **AND** preserve original fonts and styles where possible
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- **AND** include extracted images at correct positions
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#### Scenario: Export PDF from OCR track with full structure
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- **WHEN** exporting PDF from OCR-processed document
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- **THEN** the PDF SHALL use all 23 PP-StructureV3 element types
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- **AND** render tables with proper cell boundaries
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- **AND** maintain reading order from parsing_res_list
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#### Scenario: Handle coordinate transformations correctly
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- **WHEN** generating PDF from UnifiedDocument
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- **THEN** system SHALL use explicit page dimensions from OCR results (not inferred from bounding boxes)
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- **AND** correctly transform Y-axis coordinates from top-left (OCR) to bottom-left (PDF/ReportLab) origin
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- **AND** prevent vertical flipping or position misalignment errors
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- **AND** handle page size variations accurately
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#### Scenario: Support multi-page documents with varying dimensions
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- **WHEN** generating PDF from multi-page document with mixed orientations
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- **THEN** system SHALL apply correct page size for each page independently
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- **AND** support both portrait and landscape pages in same document
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- **AND** NOT use first page dimensions for all subsequent pages
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- **AND** call setPageSize() for each new page before rendering content
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#### Scenario: Single-page layout verification
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- **WHEN** user exports OCR-processed single-page document (e.g., img1.png)
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- **THEN** generated PDF text positions SHALL match original image coordinates
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- **AND** top-aligned text (e.g., headers) SHALL appear at correct vertical position
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- **AND** no content SHALL be vertically flipped or offset from expected position
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### Requirement: Structure Data Export
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The system SHALL provide export formats that preserve document structure for downstream processing.
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#### Scenario: Export structured JSON with hierarchy
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- **WHEN** user selects structured JSON format
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- **THEN** export SHALL include element hierarchy and relationships
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- **AND** preserve parent-child relationships (sections, lists)
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- **AND** include style and formatting information
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#### Scenario: Export for translation preparation
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- **WHEN** user exports with translation_ready=true parameter
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- **THEN** export SHALL include translatable text segments
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- **AND** maintain coordinate mappings for each segment
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- **AND** mark non-translatable regions
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#### Scenario: Export with layout analysis
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- **WHEN** user requests layout analysis export
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- **THEN** system SHALL include reading order indices
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- **AND** identify layout regions (header, body, footer, sidebar)
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- **AND** provide confidence scores for layout detection
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