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.:

US 8630021 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 14, 2014

Filed:

Nov. 11, 2010
Applicant:

Takamasa Seto, Ebina, JP;

Inventor:

Takamasa Seto, Ebina, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 1/60 (2006.01);
U.S. Cl.
CPC ...
Abstract

A color value of output color reproduced based on an output signal value corresponding to an input color value of a grid point in an input color space, which is obtained by sampling a range of the output signal value, are estimated. An evaluation value that evaluates tonality between a color value estimated in correspondence with an input color value of a grid point of interest in the input color space and color values estimated in correspondence with input color values of grid points adjacent to the grid point of interest is calculated. When the input color value of the grid point of interest, whose evaluation value is less than a predetermined threshold value, is obtained, an output signal value corresponding to that input signal value is set in the grid point of interest.


Find Patent Forward Citations

Loading…