Module dither::ditherer

Logic for dithering a loaded, preprocessed Img. See tanner helland's excellent writeup on dithering algorithms for details.

Structs

Ditherer	A type of Dither. See the documentation for the constants (i.e, ATKINSON) for the dither matrices themselves. A ditherer carries error from quantiation to nearby pixels after dividing by div and multiplying by the given scalar in offset; "spreading" the error, eg, take floyd-steinberg dithering: div=16
ErrorUnknownDitherer	An unknown ditherer name during parsing.

Constants

ATKINSON	Atkinson dithering. Div=8.
BURKES	Burkes dithering. Div=32.
FLOYD_STEINBERG	floyd-steinberg dithering. div=16
JARVIS_JUDICE_NINKE	jarvis-judice-ninke dithering`. div=48.
SIERRA_3	sierra 3 dithering. div=32
STUCKI	Stucki dithering. div=42

Traits

Dither

dither a 2d matrix. P is the type of pixel; in practice, it is either f64 or [RGB<f64>][RGB]