Facsimile and static presentation processing – Static presentation processing – Attribute control
Reexamination Certificate
2007-01-16
2007-01-16
Nguyen, Madeleine A V (Department: 2625)
Facsimile and static presentation processing
Static presentation processing
Attribute control
C358S523000, C382S162000
Reexamination Certificate
active
09662900
ABSTRACT:
A new calibration scale is proposed for as a substitute for density values of a densitometer or equivalent neutral densities. A color reproduction range of a color reversal film is set on an xy chromaticity diagram. On the xy chromaticity diagram, there are established three straight lines passing through a chromaticity point corresponding to a standard white illuminant and principal wavelengths relative to primary colors R, G, B. Vertexes of a triangle containing the color reproduction range are determined on the three straight lines. Chromaticity values at the vertexes of said triangle are determined as primary colors R, G, B. Block dye density values c, m, y corresponding to the primary colors R, G, B are determined according to the equations R=10−c, G=10−m, B=10−y. The determined block dye density values c, m, y are used as a new calibration scale. Since the block dye density values have properties similar to conventional density values as compared with colorimetric values, conventional image processing resources can be utilized.
REFERENCES:
patent: 4893178 (1990-01-01), Matama et al.
patent: 4965663 (1990-10-01), Sasaki
patent: 5255083 (1993-10-01), Capitant et al.
patent: 5398121 (1995-03-01), Kowalewski et al.
patent: 5579132 (1996-11-01), Takahashi et al.
patent: 5679142 (1997-10-01), McInerney et al.
patent: 5987168 (1999-11-01), Decker et al.
patent: 6045895 (2000-04-01), Hyde et al.
patent: 6061501 (2000-05-01), Decker et al.
patent: 6071024 (2000-06-01), Chi-Ming et al.
patent: 6088095 (2000-07-01), Sharma
patent: 6101272 (2000-08-01), Noguchi
patent: 6137594 (2000-10-01), Decker et al.
patent: 6278533 (2001-08-01), Takemoto
patent: 6281984 (2001-08-01), Decker et al.
patent: 6313925 (2001-11-01), Decker et al.
patent: 0 454 275 (1991-10-01), None
patent: 6-237373 (1994-08-01), None
patent: 6-261208 (1994-09-01), None
patent: 10-164378 (1998-06-01), None
Noboru Ohta; “Fundamentals of Color Reproduction Engineering”; published by Corona Co., Ltd.; Sep. 10, 1997; 1stedition; pp. 105-107.
Gakuo Ikeda; “Fundamentals of Colorimetric Engineering”; published by Corona Co., Ltd.; Oct. 15, 1989; pp. 125-130.
M. Rodriguez: “A graphic arts perspective on RGB-to-CMYK conversion” Proceedings of the International Conference on Image Processing. (ICIP) Washington, Oct. 23-26, 1995, Los Alamitos, IEEE Comp. Soc. Press, US, vol. 3, Oct. 23, 1995, pp. 319-322, XP010197089.
Nguyen Madeleine A V
Sughrue & Mion, PLLC
LandOfFree
Method of converting image signal, method of determining... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of converting image signal, method of determining..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of converting image signal, method of determining... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3795889