Floyd–Steinberg Dither
An error-diffusion algorithm published by Robert Floyd and Louis Steinberg in 1976. It approximates continuous tone with a few colors and became the default dithering method in countless image converters.
Spot it
- 01Organic grainy stipple
- 02Smooth gradient illusion
- 03Worm-like pixel clusters
Why it happens
Pixels are processed in scan order; each is rounded to the nearest palette color and its rounding error is spread to the four unvisited neighbours in fixed proportions.
Recreate it in Pixio
Image edit prompt“Redraw this image as a black and white Floyd–Steinberg error-diffusion dither: fine irregular pixel grain, smooth-looking tonal gradients built purely from black and white dots, subtle diagonal worm patterns in flat areas, sharp pixel edges, no grey tones. Keep the original subject and composition.”
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