Changelog

Features

• Drag and drop support for image upload
• Visual feedback during drag operation with overlay

Bug Fixes

• Fixed "Cannot read property" TypeError with null safety checks
• Added comprehensive validation for worker message handling
• Enhanced localStorage data validation to prevent corrupted state restoration
• Added safety checks for canvas ref during async operations

Features

• LocalStorage caching for settings and images
• Automatic state persistence across page navigation
• Image and settings restoration after page refresh
• Download modal with file rename and image size comparison
• Mobile-optimized layout with control panel on top

Bug Fixes

• Fixed localStorage cache inconsistency with multiple image uploads
• Fixed SSR hydration mismatch with cached state
• Improved cache data validation with version control and age checks

Initial Release

• Implemented Floyd-Steinberg dithering algorithm
• Implemented Atkinson dithering algorithm
• Implemented Ordered (Bayer) dithering algorithm
• Implemented Jarvis-Judice-Ninke dithering algorithm

Features

• 14 color palettes
• Image adjustments (brightness, contrast, saturation)
• Dither scale control for pixel size adjustment
• Diffusion factor customization
• Real-time progress tracking with percentage display
• Split-screen image comparison view
• PNG export for lossless output

Performance

• Web Worker implementation for non-blocking processing
• OffscreenCanvas for efficient image scaling
• Optimized error diffusion algorithms
• Cached image data for faster reprocessing