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:
Nov. 05, 2013
Filed:
Jan. 25, 2011
Seichi Otsuki, Kanagawa, JP;
Seichi Otsuki, Kanagawa, JP;
Sony Corporation, , JP;
Abstract
An image processing device calculates a frequency of a pixel value for each block, generates a first histogram formed by N bins, mixes the first histogram of a high luminance block and the first histogram of each block, and thereby generates a second histogram for each block. Based on the second histograms of a block including a target pixel and an adjacent block, a frequency of a pixel value that depends on a pixel position in the block of the target pixel is calculated, and a third histogram is generated for each pixel. A relationship between the pixel value and an output value of the pixel value is generated based on the third histogram such that a maximum cumulative frequency of the third histogram matches a maximum value of the output value of the pixel value, and the output value is calculated from the pixel value of the target pixel.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile