Facsimile and static presentation processing – Natural color facsimile – Color correction
Patent
1994-10-03
1997-01-14
Rogers, Scott A.
Facsimile and static presentation processing
Natural color facsimile
Color correction
358504, 358525, H04N 146, G03F 308
Patent
active
055945570
ABSTRACT:
A color printer calibration method for improving printer accuracy in regions of local non-linearity includes the steps of: a) starting with filled rectangular array of color mappings A.sub.0 mapping printer signals to device independent color space signals; b) empirically deriving a set of color mappings P.sub.i in an area of interest; c) using a set of planes defined by the color mappings of A.sub.0, and the set of empirically derived color mappings P.sub.i, identifying a new set of planes such that each point defined by A.sub.0 and each point defined by P.sub.i is located at the intersection of three planes, the intersection points of this expanded number of planes defining a set of points P.sub.i(expanded) that define a full rectangular array A.sub.1 of mappings including mappings A.sub.0, mappings P.sub.i and mappings P.sub.i(expanded) ; d) storing the mapping A.sub.1 for use in the creation of a new color space transformation LUT for use with the printer.
REFERENCES:
patent: 2790844 (1957-04-01), Neugebauer
patent: 4275413 (1981-06-01), Sakamoto et al.
patent: 4500919 (1985-02-01), Schreiber
patent: 4941039 (1990-07-01), D'Errico
patent: 4992861 (1991-02-01), D'Errico
patent: 5296923 (1994-03-01), Hung
patent: 5305119 (1994-04-01), Rolleston et al.
patent: 5311332 (1994-05-01), Imao et al.
patent: 5323249 (1994-06-01), Liang
patent: 5377041 (1994-12-01), Spaulding et al.
patent: 5390035 (1995-02-01), Kasson et al.
patent: 5416613 (1995-05-01), Rolleston et al.
patent: 5428465 (1995-06-01), Kanamori et al.
patent: 5471324 (1995-11-01), Rolleston
Po-Chieh Hung, "Tetrahedral Division Technique Applied to Colorimetric Calibration for Imaging Media", Annual Meeting IS&T, NJ, May, 1992, pp. 419-422.
Po-Chieh Hung, "Colorimetric Calibration for Scanners and Media", SPIE, vol. 1448, Camera and Input Scanner System (1991).
Sigfredo I. Nin et al, "Printing CIELAB Images on a CMYK Printer Using Tri-Linear Interpolation", SPIE Proceedings, vol. 1670, 1992, pp. 316-324.
William J. Gordon et al, "Shepard's Method of `Metric Interpolation` to Bivariate and Multivariate Interpolation", Mathematics of Computation, vol. 32, No. 141, Jan. 1978, pp. 253-264.
P. Lancaster et al, "Surfaces Generated by Moving Least Squares Methods"; Mathematics of Computation, vol. 32, No. 155, Jul. 1981, pp. 141-158.
P. Laihanen, "Colour Reproduction Theory Based on the Principles of Colour Science"; Advances in Printing Science & Technology, W. H. Banks ed, Pentech Press, London 1988, pp. 1-36.
P. Laihanen, "Optimization of Digital Color Reproduction on the Basis of Visual Assessment of Reproduced Images", Proceedings of the SID, vol. 30, No. 3, 1989, pp. 183-190.
D. Shepard, "A Two-Dimensional Interpolation Function for Irregularly-Spaced Data", Proceedings-1968 ACM National Conference, pp. 517-524.
Maltz Martin S.
Rolleston Robert J.
Costello Mark
Rogers Scott A.
Williams Kimberly A.
Xerox Corporation
LandOfFree
Color printer calibration correcting for local printer non-linea does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Color printer calibration correcting for local printer non-linea, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Color printer calibration correcting for local printer non-linea will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1392417