DitheringDithering is an imaging technique which allows a bitmap (or a bitmapped device, such as a screen or printer) to appear to display more colors than are actually possible.
Using black and white to produce the illusion of light gray:
Using black and white to produce the illusion of a mid gray:
Using black and white to produce the illusion of a dark gray:
Using red and yellow to produce the illusion of a orange:
While dithering can be an effective technique for making an image look as if it has more colors than actually does, there are a number of issues with dithering:
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