System and method for color gamut and tone compression using an

Details System and method for color gamut and tone compression using an System and method for color gamut and tone compression using an

1996-03-07

1998-09-15

Tran, Phuoc

Image analysis

Color image processing

382166, G06K 900

Patent

active

058091645

ABSTRACT:
A color management system including methods relying on an "Ideal Film Model" color mapping function characterized by exact colorimetric detection of world color information, a nonlinear tone compression acting on the tristimulus values X/Xn, Y/Yn, Z/Zn, and an exact calorimetric display of the compressed tristimulus values. The system and method operate to provide a process for describing the necessary tone reproduction required in displaying optimal reproductions of complex world pictorial scenes over a plurality of elements in an image processing system and to provide a reference system for evaluating the color and tone reproduction of real imaging systems; provide a well defined calibration protocol for the calibration of electronic and hybrid imaging systems designed to capture complex world scenes; and provide a useful model for simulating some sensitometric attributes of real photographic systems.

REFERENCES:
patent: 5239370 (1993-08-01), Yamaguchi
patent: 5410617 (1995-04-01), Kidd et al.
patent: 5420704 (1995-05-01), Winkelman
patent: 5521723 (1996-05-01), Madden et al.

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