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.

Date of Patent:
Jul. 25, 2006

Filed:

Sep. 04, 2002
Applicant:

Tadashi Sugiki, Yokohama, JP;

Inventor:

Tadashi Sugiki, Yokohama, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 9/73 (2006.01);
U.S. Cl.
CPC ...
Abstract

When average color data indicates blue, the blue component is reduced from the average color data. A line is drawn diagonally from that point downward to the left at 45° on the coordinate system. The intersection between this line and the abscissa is estimated as the color of the light source. When average color data indicates green close to cyan, the cyan component is reduced from the average color data. A broken line is drawn diagonally from that point upward to the left at 45° on the coordinate system, and the intersection between this broken line and the abscissa is obtained. In this case, the value of the abscissa of estimated light source color is set to 0.


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