Image2pixel

Features

- 📱 Native Android App: Built with Kotlin and Jetpack Compose
- 🎨 Image to Pixel Art: Convert regular images to pixel art style
- ⚡ High Performance: Optimized based on the original pixelit.js algorithm, 6-7x faster processing
- 🎛️ Adjustable Parameters:
- Pixelation scale (1%-50%)
- Grayscale mode toggle
- Palette mode toggle
- 💾 Save Function: Save processed images to gallery
- 🖼️ Focused Display: Shows only the processed pixel art effect with a cleaner interface
- 🔧 Smart Processing: Supports large images (2000x2000+) with automatic memory management

## Technical Implementation

### Core Algorithm
Based on the original JavaScript version algorithm, reimplemented and optimized in Kotlin:

1. Pixelation Processing:
- Smart large image handling (auto-adjusts scale for >900px images)
- Precise boundary calculations to avoid cropping issues
- Optimized drawing methods using Rect for precise control

2. Color Similarity Calculation: Uses Euclidean distance for color similarity calculation

3. Palette Mapping:
- Batch pixel processing for 6-7x performance improvement
- Proper transparency handling
- Optimized memory management

4. Grayscale Conversion: RGB average value calculation for grayscale (consistent with original algorithm)