3 Commits

Author	SHA1	Message	Date
egg	ea0dd7456c	feat: implement layout preprocessing backend ... Backend implementation for add-layout-preprocessing proposal: - Add LayoutPreprocessingService with CLAHE, sharpen, binarize - Add auto-detection: analyze_image_quality() for contrast/edge metrics - Integrate preprocessing into OCR pipeline (analyze_layout) - Add Preview API: POST /api/v2/tasks/{id}/preview/preprocessing - Add config options: layout_preprocessing_mode, thresholds - Add schemas: PreprocessingConfig, PreprocessingPreviewResponse Preprocessing only affects layout detection input. Original images preserved for element extraction. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>	2025-11-27 15:17:20 +08:00
egg	06a5973f2e	proposal: add hybrid control mode with auto-detection and preview ... Updates add-layout-preprocessing proposal: - Auto mode: analyze image quality, auto-select parameters - Manual mode: user override with specific settings - Preview API: compare original vs preprocessed before processing - Frontend UI: mode selection, manual controls, preview button 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>	2025-11-27 14:31:09 +08:00
egg	c12ea0b9f6	proposal: add-layout-preprocessing for improved table detection ... Problem: PP-Structure misses tables with faint lines/borders Solution: Preprocess images (contrast, sharpen) for layout detection - Preprocessed image only used for layout detection - Original image preserved for element extraction (quality) Includes: proposal.md, design.md, tasks.md, spec delta 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>	2025-11-27 14:24:23 +08:00