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:
May. 18, 2010
Filed:
Mar. 06, 2006
Naoya Oka, Yokohama, JP;
Masahiro Nako, Yokohama, JP;
Ryo Hasegawa, Yokohama, JP;
Rikiya Asaoka, Yokohama, JP;
Daisuke Honda, Yokohama, JP;
Naoya Oka, Yokohama, JP;
Masahiro Nako, Yokohama, JP;
Ryo Hasegawa, Yokohama, JP;
Rikiya Asaoka, Yokohama, JP;
Daisuke Honda, Yokohama, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
An image processing apparatus is provided that performs more appropriate black stretch processing to display a high quality video. The image processing apparatus includes a luminance characteristics detection unit that analyzes a received video signal to detect a frequency of each of a plurality of luminance areas with a luminance at least equal to or lower than a predetermined luminance, a black stretch processing unit that performs black stretch processing for a luminance signal with a luminance equal to or lower than a predetermined luminance level, and a microcomputer that uses the frequency of each of the plurality of luminance areas, detected by the detection unit, to control the black stretch processing of the black stretch processing unit.