Image color balance for scanners using an illumination spectral sensor
AssigneeEastman Kodak Company
InventorsMark A. Barton, George O. Simmons
Life of this patent
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Abstract
An image scanning system for producing an electronic version of a hardcopy element which is compensated for spectral content of an illumination source in the image scanning system, the image scanning system includes a sensor for receiving light containing the hardcopy element for forming and storing an electronic version of the hardcopy element; a spectral sensor for receiving light from the illumination source and storing an electronic version of spectral contents of the illumination source; and a conversion system for receiving the electronic versions of the illumination source and the hardcopy element and creating a compensation table that compensates subsequent hardcopy elements passed through the conversion system.
Claims8
An image scanning system for producing an electronic version of a hardcopy element which is compensated for spectral content of an illumination source in the image scanning system, the image scanning system comprising:
- (a) a sensor for receiving light containing the hardcopy element for forming and storing an electronic version of the hardcopy element;
- (b) a spectral sensor for receiving light from the illumination source and storing an electronic version of spectral contents of the illumination source;
- and
- (c) a conversion system for receiving the electronic versions of the illumination source and the hardcopy element and adjusting one or more parameters of a compensation process that compensates subsequent hardcopy elements passed through the conversion system.
An image scanning system for producing an electronic version of a hardcopy element which is compensated for spectral content of an illumination source in the image scanning system, the image scanning system comprising:
- (a) a sensor for receiving light containing the hardcopy element for forming and storing an electronic version of the hardcopy element;
- (b) a conversion operator that compensates hardcopy the hardcopy element for the illumination source;
- and
- (c) a conversion system for receiving the electronic versions of the illumination source and compensating the hardcopy element according to the conversion operator.
Dependencies are inferred from the claim text.