Halftoning, dithering

From Helpful
Jump to: navigation, search
The physical and human spects dealing with audio, video, and images

Vision and color perception: objectively describing color · the eyes and the brain · physics, numbers, and (non)linearity · color spaces · references, links, and unsorted stuff

Image: file formats · noise reduction · halftoning, dithering · illuminant correction · Image descriptors · image feature and contour detection · OCR

Video: format notes · encoding notes · On display speed


Audio physics and physiology: Basic sound physics · Human hearing, psychoacoustics · Descriptions used for sound and music

Digital sound and processing: capture, storage, reproduction · programming and codescs · some glossary · Audio and signal processing - unsorted stuff


Electronic music: Some history, ways of making noises · Gaming synth · on APIs (and latency) ··· microphones · studio and stage notes · Effects · sync ·

Music electronics: device voltage and impedance, audio and otherwise · amps and speakers · basic audio hacks · Simple ADCs and DACs · digital audio · multichannel and surround ·

Noise stuff: Stray signals and noise · sound-related noise names · electronic non-coupled noise names · electronic coupled noise · ground loop · strategies to avoid coupled noise · Sampling, reproduction, and transmission distortions · (tape) noise reduction


Unsorted: Visuals DIY · Signal analysis, modeling, processing (some audio, some more generic) · Music fingerprinting and identification

For more, see Category:Audio, video, images

This article/section is a stub — probably a pile of half-sorted notes, is not well-checked so may have incorrect bits. (Feel free to ignore, fix, or tell me)


Ordered dithering

Ordered dithering uses regular patterns to imitate gradients.

This will often have noticeable grid and/or crosshatch patterns.

https://en.wikipedia.org/wiki/Ordered_dithering

Floyd Steinberg dithering

https://en.wikipedia.org/wiki/Floyd%E2%80%93Steinberg_dithering


Jarvis, Judice, and Ninke dithering

Stucki dithering

Atkinson dithering

Burkes dithering

Sierra dithering