Appearance-based technique for rendering colors on an output device
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United States of America Patent
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Jul 22, 1997
Grant Date -
N/A
app pub date -
Feb 5, 1996
filing date -
Feb 2, 1996
priority date (Note) -
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status (Latency Note)
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Abstract
A target output device such as a printer is characterized in a manner that primary colorant amounts can be determined on the basis of a pair of chromaticity coordinates in a chromaticity space having a pair of chromaticity coordinates that span hue and chroma (saturation) and a luminance correlate (monotonic function of luminance). Lightness (or darkness) of the colors is handled largely independently. This makes it possible to store the colorant information in a two-dimensional table indexed by chromaticity coordinates. The information in the table is for colors that are characterized by the highest luminance that the target printer is capable of rendering for a given chromaticity (hue and chroma).
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Cited Art Landscape
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