COLOR DATA INVERSION AND RECONVERSION

WIPO Patent Application WO2000000922

A3

Presented are improved systems, methods, data structures, and computer readable media for processing and printing color data which convert colorant amounts (c, m, y, k) for pixels into corresponding color amounts (r', g', b') for the pixels, and therefrom to accurate colorant amounts (c', m', y', k') for the pixels. This supports accurate printing of such pixels even where the colorant amounts (c, m, y, k) are inaccurate, and can be used where the colorant amounts (c, m, y, k) were determined via a substantially reversible process in response to a set of color amounts (r, g, b). It is not required that the color amounts (r', g', b') equal any original color amounts (r, g, b) used to supply the inaccurate (c, m, y, k), colorant amounts. A set of color amounts (r', g', b') substantially matching the color amounts (r, g, b) is obtained even when exact equality is not obtained or cannot be verified. However, the original color amounts (r, g, b) are frequently obtained and are believed to be preferable. A post processor supplies the colorant amounts (c, m, y, k) to obtain the colorant amounts (c', m', y', k') supplied by a processor. The post processor can comprise a dedicated device such as a print server, or can be supplied by the processor in response to data and or software instructions.

FALK RICHARD

PCT/US1999/014736

June 08, 2000

June 29, 1999

Click for automatic bibliography generation  

SPLASH TECHNOLOGY INC (US)

G06K15/02; H04N1/60; (IPC1-7): H04N1/60

WO1995031794A1	1995-11-23
WO1992006557A1	1992-04-16

EP0531891A2	1993-03-17
US5479189A	1995-12-26
EP0338457A1	1989-10-25
EP0147813A2	1985-07-10
EP0501942A1	1992-09-02
EP0454275A2	1991-10-30

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