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.

Date of Patent:
Jan. 10, 2017

Filed:

Dec. 11, 2012
Applicant:

Konica Minolta, Inc., Tokyo, JP;

Inventor:

Mitsunori Nakamura, Tama, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/00 (2006.01); G06T 5/40 (2006.01); G06T 5/00 (2006.01); G06T 7/40 (2006.01); H04N 1/407 (2006.01);
U.S. Cl.
CPC ...
G06T 5/40 (2013.01); G06T 5/007 (2013.01); G06T 7/403 (2013.01); G06T 2207/10012 (2013.01); H04N 1/4074 (2013.01);
Abstract

An image processing method includes: a generating step of generating a cumulative histogram of density values of pixels included in at least each of a first image and a second image; a calculating step of calculating a distance between a density value on a first histogram generated from the first image and a density value on a second histogram generated from the second image, in a space defined to include histogram frequencies of the cumulative histograms and the density values; and a determining step of determining a correspondence relation between the density values included in the first image and the density values included in the second image based on the calculated distances between the density values, and determining a conversion function for correcting a density value between the first image and the second image based on the determined correspondence relation.


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