The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 01, 1991
Filed:
Aug. 02, 1989
Stephen E Johnson, Pittsford, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
The present invention is designed to operate with a digital imaging device which reproduces in hardcopy an original color image. In order to make high quality reproductions, that is reproductions which correspond in finished color to the color of the original image, the method of the present invention operates upon the original color densities with a color correction module that has as its input the desired red, green, and blue densities, and which outputs the modified red, green, and blue densities which can be considered to be channel-independent aim control signals for the imaging device. In the event that external conditions change which prevent the desired red, green, and blue densities from being achieved when the color correction module is utilized, a neutral adjustment module is activated which takes as its inputs the red, green, and blue aim control signals from the color correction module and outputs adjusted red, green, and blue signals which are directed to the imaging device. The derivation of the parameters for the neutral adjustment module is accomplished by the production of a hardcopy image of neutral color patches. The densities of the patches are measured and provided to the color correction module to determine the correct relationships between red, green, and blue signals output from the color correction module and the resulting densities.