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. 05, 2020
Filed:
Dec. 14, 2016
Applicant:
Nec Platforms, Ltd., Kawasaki-shi, Kanagawa, JP;
Inventors:
Shou Yazawa, Kanagawa, JP;
Yukio Yoshioka, Kanagawa, JP;
Assignee:
NEC Platforms, Ltd., Kawasaki-shi, Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06T 5/40 (2006.01); H04N 1/407 (2006.01); H04N 1/46 (2006.01); H04N 1/60 (2006.01); G06T 7/90 (2017.01); G06T 5/00 (2006.01); H04N 1/40 (2006.01);
U.S. Cl.
CPC ...
G06T 5/40 (2013.01); G06T 5/009 (2013.01); G06T 7/90 (2017.01); H04N 1/407 (2013.01); H04N 1/40012 (2013.01); H04N 1/4074 (2013.01); H04N 1/46 (2013.01); H04N 1/465 (2013.01); H04N 1/60 (2013.01); H04N 1/6005 (2013.01); G06T 2207/10024 (2013.01);
Abstract
In an image data conversion device, color image data is represented in gray scale, a histogram of brightness values is created for the gray-scaled image data, it is determined based on the created histogram which image pattern of a plurality of image patterns the gray-scaled image data is classified into, a range subjected to gamma correction and a range fixed to at least one of a minimum value and a maximum value of gray scale are set for each image pattern, and image data conversion including the gamma correction is performed on the gray-scaled image data.