Enter The Digital Era
Floyd and Steinberg described a system for performing error diffusion on digital images based on a simple kernel:
where "" denotes a pixel in the current row which has already been processed (hence diffusing error to it would be pointless), and "#" denotes the pixel currently being processed.
Nearly concurrently, J F Jarvis, C N Judice, and W H Ninke of Bell Labs disclosed a similar method which they termed "minimized average error," using a larger kernel:
Read more about this topic: Error Diffusion
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