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. 19, 2013
Filed:
Dec. 03, 2010
Seichi Otsuki, Kanagawa, JP;
Nobuhiro Tsunashima, Kanagawa, JP;
Seichi Otsuki, Kanagawa, JP;
Nobuhiro Tsunashima, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
Provided is an image processing apparatus which includes a block histogram generation unit configured to calculate frequency of a pixel value in each block, divide a dynamic range, and generate a first histogram including 'N' number of bins, a pixel histogram generation unit configured to calculate frequency of a target pixel in a block based on first histograms of the block including the target pixel and a block adjacent to the block including the target pixel, and generate a second histogram including 'N' number of bins for each pixel, and an output value determination unit configured to generate a relation between the pixel value and an output value of the pixel value based on the second histogram so that a maximum cumulative frequency of the second histogram matches a maximum value of the output value, and calculate the output value based on the pixel value of the target pixel.