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| # Image Upscaler | |
| ## Overview | |
| This is an AI-powered image upscaling web application that allows users to upscale images by 2x, 4x, 6x, or 8x magnification. The application is a static HTML/CSS/JavaScript site based on the Qoc Upscaler. | |
| ## Project Type | |
| - **Type**: Static Website (Frontend Only) | |
| - **Languages**: HTML, CSS, JavaScript | |
| - **No Backend**: This is a pure client-side application with no server-side processing | |
| ## Project Architecture | |
| - **Server**: Python's built-in HTTP server | |
| - **Port**: 5000 (configured to bind to 0.0.0.0) | |
| - **Deployment**: Configured for autoscale deployment (static site) | |
| ## Key Files | |
| - `index.html` - Main application page with modern UI design | |
| - `new-design.css` - Custom CSS for the redesigned interface | |
| - `jsnew_image-upscaler.js` - Core image upscaling logic | |
| - `js_free-online-image-upscaler.js` - Upscaler functionality | |
| - `js_quene.js` - Queue management for batch processing | |
| - CSS files: `css.css`, `style.css`, `local.css`, `all.min.css` | |
| ## Features | |
| - Drag and drop image upload | |
| - Multiple magnification levels (2x, 4x, 6x, 8x) | |
| - Advanced upscale options: AI Strength, Clarity, Sharpness, Color Improvement, Resemblance | |
| - Side-by-side preview popup after enhancement | |
| - Queue system for batch processing | |
| - User-controlled download (preview first, download on button click) | |
| - Mobile-friendly interface | |
| - Modern gradient loading animation | |
| - Interactive preview modal with comparison view | |
| ## UI Design | |
| - **Theme**: Modern dark theme with purple/pink gradient accents | |
| - **Typography**: Space Grotesk font family | |
| - **Styling**: Tailwind CSS with custom color palette | |
| - **Upload Area**: Large drag-and-drop zone with cloud icon | |
| - **Options**: Clean dropdown selectors for resolution and file format | |
| - **No Header**: Streamlined design without navigation header | |
| - **No Quality Option**: Simplified interface with resolution and format only | |
| ## Recent Changes | |
| ### September 30, 2025 - Added Advanced Upscale Options | |
| - Added five new slider controls: AI Strength, Clarity, Sharpness, Color Improvement, and Resemblance | |
| - Sliders feature purple/pink gradient styling matching the app theme | |
| - Real-time value display updates as sliders move (0-100%) | |
| - Gradient track fill animates with slider position for visual feedback | |
| - JavaScript stores slider values via window.upscaleOptions.getOptions() for future API integration | |
| - Current backend API only supports magnification, but UI is ready for enhanced functionality | |
| - All changes reviewed and approved by architect | |
| ### September 30, 2025 - Fixed Scrolling Bug After Popup Close | |
| - Fixed critical bug where website became non-scrollable after closing preview popup | |
| - Root cause: closeMessageBox() function was setting overflow='hidden' but never restoring it | |
| - Added overflow='auto' restoration to closeMessageBox() function | |
| - Added overflow restoration to all preview popup close handlers (close button, new image button, overlay click) | |
| - Changes reviewed and approved by architect | |
| - Website now properly restores scrolling functionality after all popup interactions | |
| ### September 30, 2025 - Preview Popup Modal Implementation | |
| - Created new popup modal that displays after image enhancement | |
| - Side-by-side comparison shows original vs enhanced images | |
| - Displays resolutions for both images | |
| - Purple/pink gradient divider between images matching theme | |
| - Download button with proper filename (enhanced_{magnification}x.png) | |
| - New Image button to quickly upload another file | |
| - Close button and overlay click to dismiss popup | |
| - Mobile responsive design with stacked layout | |
| - Event handlers properly initialized to prevent duplicates | |
| - All changes reviewed and approved by architect | |
| ### September 30, 2025 - Loading Popup Redesign & Download Behavior | |
| - Redesigned loading popup with modern CSS gradient spinner (purple/pink theme) | |
| - Replaced GIF spinner with animated conic-gradient CSS spinner | |
| - Improved loading text with better typography and messaging | |
| - Disabled automatic download after image enhancement | |
| - Preview now shows first, user must click download button to save | |
| - Verified side-by-side comparison preview displays correctly | |
| - All changes reviewed and approved by architect | |
| ### September 30, 2025 - Replit Environment Setup (Fresh GitHub Import) | |
| - Python 3.11 module installed for serving static files | |
| - Workflow configured to run HTTP server on port 5000 (bound to 0.0.0.0) | |
| - Deployment configured for autoscale deployment (static site) | |
| - .gitignore already includes Python-related files | |
| - Application tested and verified working perfectly in Replit environment | |
| - All resources loading correctly (HTML, CSS, JavaScript files) | |
| - Modern dark theme UI displaying correctly with purple/pink gradient accents | |