2 months ago
- Dithering reduces file size by using fewer colors while maintaining detail, and gives a cool aesthetic.
- The author uses ImageMagick's 'convert' command to simulate AM (amplitude-modulated) printing dots.
- The process involves converting to CMYK, separating channels, creating dot grids, rotating them at specific angles, and overlaying.
- Limiting each channel to 2 colors before combining produces a more accurate halftone effect.
- The old method limited the palette to monochrome (black and pink), while the new method uses a remap to a pink palette for more depth.
- The method is computationally expensive and not optimal for file size reduction, but achieves a distinctive print-like look.
- The script automates the process for multiple images, but the author notes it's not true dithering and can take 10 seconds per image.