Method of determining an image recording device...

Details Method of determining an image recording device... Method of determining an image recording device...

2005-08-09

2005-08-09

Toatley, Jr., Gregory J. (Department: 2877)

Optics: measuring and testing

By shade or color

C356S419000, C348S210990, C382S162000

Reexamination Certificate

active

06927855

ABSTRACT:
A method is provided of determining an image recording device characterisation for a target image. A number of component spectra are determined from a set of target spectra obtained from the target image such that the spectra can be represented by combinations of one or more of the component spectra. A perceptual color space data set is defined and combinations of the component spectra which correspond to the perceptual color space data set are determined. A device data set is generated in accordance with the determined combinations and a device spectra response, the device data set representing a set of colors which can be generated by an image recording device having the device spectral response. A characterisation is then determined by reference to the relationship between the device and perceptual color space data sets.

REFERENCES:
patent: 5668596 (1997-09-01), Vogel

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