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:
Mar. 30, 2010
Filed:
Jun. 15, 2007
Takanori Miki, Kanagawa, JP;
Kazunobu Takahashi, Kanagawa, JP;
Takanori Miki, Kanagawa, JP;
Kazunobu Takahashi, Kanagawa, JP;
Eastman Kodak Company, Rochester, NY (US);
Abstract
There is provided a technique of preventing occurrence of a shift in white balance even when the ratio of a dark area is greater than the ratio of a bright area as in the case of a night view. A white balance gain calculator calculates white balance gains for an image from color of pixels whose luminance levels are at equal to or greater than a reference luminance level among all pixels of an image. When the ratio of dark pixels whose luminance satisfies a predetermined condition, among all pixels of the image, is equal to or greater than a reference ratio, a correction coefficient calculating section determines a correction coefficient from at least one of factors; namely, image-capturing sensitivity corresponding to an image, the ratio of dark pixels, and firing/non-firing of flash light; and instructs the white balance gain calculator to make a correction to the white balance gain in accordance with the correction coefficient.