Apparatus and method of performing dithering in a simplex in color space
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United States of America Patent
Stats
-
Oct 16, 2001
Grant Date -
N/A
app pub date -
Aug 19, 1998
filing date -
Aug 19, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A pixel color in an image can be represented by a dot color in a dot pattern as follows. A subset of a limited set of display colors is selected. The subset has N display colors that can render a solid color patch of the pixel color. The colors of the subset correspond to vertices of a simplex in the color space. The simplex has (N-1) dimensions. A point operation is then performed to select one of the vertices of the simplex and thereby select the dot color of the subset color corresponding to the selected vertex. Consequently, a solid patch of the pixel color can be rendered by a dot pattern having no more than N different colors. The dot pattern can be displayed by an imaging device such as an inkjet printer, which has a limited set of display colors.
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