Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1997-05-14
2000-06-06
Coles, Edward L.
Facsimile and static presentation processing
Static presentation processing
Attribute control
358456, 358518, 358534, G06F 1500
Patent
active
060725893
ABSTRACT:
A method for characterizing a halftone printer uses a reduced number of test patches to simulate the printing characteristics over the printer's full range of realizable color combinations. The method involves obtaining a set of color values from each of a limited number of test patches. Substantially fewer test patches are used than are necessary to adequately sample a full range of realizable color combinations. The method also involves constructing a halftone printer model using at least one device spot size parameter, the sets of color values, and a set of addressable units corresponding to device spot locations on a medium. Each addressable unit is smaller than a device spot. A set of color separations representing a page of color samples spanning the full range is generated. The method involves generating a set of bitmaps from the set of color separations and applying the halftone printer model to produce a digital representation of the page of color samples in a device-independent color space from the set of bitmaps. A device profile that characterizes the halftone printing process is generated as a function of the digital representation.
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Bauer William D.
Coles Edward L.
Imation Corp
Pokrzywa Joseph R.
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