Image Floyd-Steinberg Dither

How Image Floyd-Steinberg Dither works

Image Floyd-Steinberg Dither is designed to apply Floyd-Steinberg error diffusion to local raster luminance. Each luminance value is thresholded, then its quantization error is distributed to four unprocessed neighbors with 7, 3, 5, and 1 sixteenths. Image Floyd-Steinberg Dither adds a focused result for this operation. For Image Floyd-Steinberg Dither, the result area exposes what the selected values produce, making it possible to compare the calculation with the worked case below.

The 2 by 2 grayscale sample 0, 100, 150, 255 diffuses to 0, 0, 255, 255. Use it to prepare one-bit artwork for thermal printing, retro displays, or black-and-white visual experiments. In Image Floyd-Steinberg Dither, adjust one labeled setting at a time and compare the changed output with that default to isolate its effect.

Limits, output, and privacy

Error diffusion is order dependent and can form directional texture; transparent pixels still carry their RGB luminance into the calculation. For Image Floyd-Steinberg Dither, large source images require more memory because the browser holds both source and output pixel buffers while processing. Image Floyd-Steinberg Dither keeps the operation client-side. With Image Floyd-Steinberg Dither, all calculation and rendering stays local, including the final copy or download operation.