Image processing apparatus for correcting an input image and...

Details Image processing apparatus for correcting an input image and... Image processing apparatus for correcting an input image and...

Filed on

2011-03-22

Date issued

2011-03-22

Examiner

Do, Anh Hong (Department: 2624)

Patent Class

Image analysis

SubClass

Color image processing

SubSubClass

Color correction

Other Related Categories

C382S162000, C382S274000

Type

Reexamination Certificate

Status

active

Patent number

07912282

Description

ABSTRACT:
An image processing apparatus includes a face detector and a gamma corrector. The face detector detects a subject area or areas out of image data output from an image sensor. A correction table is produced on the basis of luminance values of the subject area and a frequency distribution of luminance, i.e., distribution information derived from the entire or part of an area represented by the image data. The gamma corrector uses either one of the above correction table and a basic correction table to correct the tone of the image data.

REFERENCES:
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patent: 5715377 (1998-02-01), Fukushima et al.
patent: 5940530 (1999-08-01), Fukushima et al.
patent: 6281920 (2001-08-01), Agano
patent: 7330600 (2008-02-01), Nishida
patent: 2003/0020974 (2003-01-01), Matsushima
patent: 2003/0099407 (2003-05-01), Matsushima
patent: 2004-180173 (2004-06-01), None

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