| # Interactive Kernel Convolution Visualizer - Updates Log |
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| ## Version 0.1.0 - Initial Planning (2026-08-06) |
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| ### Project Initialization |
| - Created comprehensive project plan (plan.md) |
| - Established project directory structure |
| - Defined core features, technical architecture, and development phases |
| - Identified target audience and success metrics |
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| ### Key Decisions |
| 1. **Tech Stack**: Next.js 14+ with TypeScript, Tailwind CSS, Framer Motion |
| 2. **Canvas Approach**: HTML5 Canvas API primary, WebGL as performance fallback |
| 3. **State Management**: Zustand for global state |
| 4. **Convolution Implementation**: Custom JavaScript (no OpenCV.js dependency) |
| 5. **Animation**: RequestAnimationFrame with configurable frame batching |
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| ### Architecture Highlights |
| - Modular component structure separating concerns |
| - Step-by-step convolution generator for educational visualization |
| - Web Worker support for heavy computation |
| - Progressive rendering to maintain UI responsiveness |
| - Comprehensive type definitions for type safety |
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| ### Development Phases Defined |
| 8 phases over ~8 weeks covering: |
| 1. Foundation & Setup |
| 2. Core Convolution Engine |
| 3. Animation & Visualization |
| 4. Interactive Controls |
| 5. Comparison & Analysis |
| 6. Educational Features |
| 7. Export & Polish |
| 8. Advanced Features |
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| ### Risk Mitigation Strategies |
| - Performance: Web Workers, progressive rendering, WebGL fallback |
| - Memory: Canvas pooling, proper cleanup |
| - Cross-browser: Feature detection, polyfills |
| - State complexity: Zustand with immutable updates |
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| --- |
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| ## Version 0.2.0 - Phase 1 Complete: Foundation & Setup (2026-08-06) |
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| ### Completed |
| - [x] Next.js 14+ project initialized with TypeScript, Tailwind CSS, ESLint |
| - [x] Additional dependencies installed: Zustand, Framer Motion, Lucide React, Radix UI |
| - [x] Project directory structure created (components, hooks, lib, store, types, utils) |
| - [x] TypeScript type definitions for all core data structures |
| - [x] Kernel library with 25+ predefined kernels across 6 categories |
| - [x] Convolution engine with step-by-step generator and padding strategies |
| - [x] Zustand store with complete state management for images, kernels, convolution, settings, comparison |
| - [x] Custom React hooks: useConvolution, useImageLoader, useCanvas, useZoomPan |
| - [x] UI component library: Button, Input, Select, Slider, Card, Badge, Tooltip |
| - [x] Canvas visualization components: ConvolutionCanvas, ImageCanvas, SplitView |
| - [x] Control components: PlaybackControls, OverlayControls, PaddingControls, KernelInfoPanel |
| - [x] KernelSelector component with search, categories, and custom kernel editor |
| - [x] Main page with three-panel layout (controls, visualization, info) |
| - [x] Drag-and-drop image upload with preview |
| - [x] Responsive layout with resizable sidebars |
| - [x] Dark mode support |
| - [x] Help modal and settings modal |
| - [x] README.md with comprehensive documentation |
| - [x] Updated package.json with proper metadata and scripts |
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| ### In Progress |
| - [ ] Phase 2: Core Convolution Engine optimization |
| - [ ] Phase 3: Animation & Visualization polish |
| - [ ] Phase 4: Interactive Controls refinement |
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| ### Notes |
| - All foundation components are in place and typed |
| - Convolution engine implements all 4 padding modes |
| - Generator-based step-by-step execution for educational visualization |
| - State management handles complex interactions between components |
| - Ready for Phase 2 optimization and Phase 3 visualization enhancements |
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| --- |
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| ## Version 0.3.0 - Phase 2 Complete: Static Convolution Visualization (2026-08-06) |
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| ### Completed |
| - [x] Added `computeConvolutionStep()` function to convolution engine for single-pixel inspection |
| - [x] Created `useStaticConvolution` hook for static inspection capabilities |
| - [x] Built `StaticConvolutionView` component with 5 educational tabs: |
| - Overview: Input patch, kernel values, computation summary |
| - Image Patch: Detailed patch view at clicked position |
| - Multiplications: Element-wise pixel × kernel breakdown |
| - Summation: Step-by-step Σ(pixel × kernel) with normalization |
| - Padding: Visual demonstration of padding strategies at borders |
| - [x] Implemented click-to-inspect on main ConvolutionCanvas |
| - [x] Created reusable Tabs UI component with Radix UI |
| - [x] Integrated static inspector into right sidebar (replaces kernel info when active) |
| - [x] Added channel selector (Red/Green/Blue/Alpha) for per-channel inspection |
| - [x] All 4 padding modes (zero, reflect, replicate, wrap) working in static view |
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| ### Technical Achievements |
| - Build passes: `npm run build` ✓ |
| - TypeScript passes: `npm run type-check` ✓ |
| - Dev server runs without errors ✓ |
| - Efficient single-pixel computation without full generator execution |
| - Reuses existing ConvolutionStep type for consistency |
| - Handles edge cases (clamped coordinates, invalid channels) |
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| ### In Progress |
| - [ ] Phase 3: Animation & Visualization |
| - [ ] Phase 4: Interactive Controls |
| - [ ] Phase 5: Comparison & Analysis |
