Facsimile and static presentation processing – Natural color facsimile – Color correction
Patent
1998-03-30
2000-12-12
Williams, Kimberly A.
Facsimile and static presentation processing
Natural color facsimile
Color correction
382167, G03F 308, G06K 900
Patent
active
061606448
ABSTRACT:
The present invention is directed to an apparatus and a method to improve color matching between original color images and reproductions of those images. The present invention comprises an input device and an output device by obtaining a first transformation that maps points representing colors within a first output-device-gamut from a device-dependent color space to points in a device-independent color space, obtaining a second transformation that maps points representing colors within a second output-device-gamut from the device-dependent color space to points in the device-independent color space, and deriving the color space transformation such that it maps a respective point from the device-dependent color space to a corresponding point in the device-independent color space according to whether the respective point is within either or both of the first and second output-device gamuts.
REFERENCES:
patent: 5339176 (1994-08-01), Smilansky et al.
patent: 5450216 (1995-09-01), Kasson
patent: 5452112 (1995-09-01), Wan et al.
patent: 5481380 (1996-01-01), Bestmann
patent: 5483360 (1996-01-01), Rolleston et al.
patent: 5489998 (1996-02-01), Yamada et al.
patent: 5491568 (1996-02-01), Wan
patent: 5543940 (1996-08-01), Sherman
patent: 5552904 (1996-09-01), Ryoo et al.
patent: 5561459 (1996-10-01), Stokes et al.
patent: 5581376 (1996-12-01), Harrington
patent: 5583666 (1996-12-01), Ellson et al.
patent: 5594557 (1997-01-01), Rolleston et al.
patent: 5610732 (1997-03-01), Komatsu
patent: 5692071 (1997-11-01), Govaert
patent: 5704026 (1997-12-01), Wan
patent: 5712925 (1998-01-01), Ohga
patent: 5786908 (1998-07-01), Liang
SPIE Optical Engineering Press, "Color Technology for Electronic Imaging Devices", 1997, pp. 64-101, 141-152 and 248-251, H.R. Kang.
Seiko Epson Corporation
Williams Kimberly A.
LandOfFree
Scanner calibration technique to overcome tone inversion does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Scanner calibration technique to overcome tone inversion, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Scanner calibration technique to overcome tone inversion will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-223002