Image processing apparatus and method

Details Image processing apparatus and method Image processing apparatus and method

2005-08-24

2008-09-16

Tran, Nhan T. (Department: 2622)

Television

Camera, system and detail

Camera connected to computer

C348S241000, C348S606000, C348S222100, C348S627000, C382S274000

Reexamination Certificate

active

07425985

ABSTRACT:
A dodging process which brightens a dark portion sometimes makes noise components contained in an image obtained by an image sensor conspicuous. A gray image generator extracts a luminance component Y of an image, an unsharp image generator generates an unsharp image L on the basis of the luminance component Y, a correction coefficient calculator calculates a correction coefficient g for correcting a brightness difference of the image in accordance with the unsharp image L, a corrector performs a dodging process in accordance with the correction coefficient g, and a noise eliminator eliminates noise of the image in accordance with the correction coefficient g.

REFERENCES:
patent: 5953461 (1999-09-01), Yamada
patent: 6055340 (2000-04-01), Nagao
patent: 6480300 (2002-11-01), Aoyama
patent: 6628842 (2003-09-01), Nagao
patent: 7068328 (2006-06-01), Mino
patent: 7271851 (2007-09-01), Lin et al.
patent: 7310450 (2007-12-01), Steinberg et al.
patent: 10-040185 (1998-02-01), None
Jobson, et al., “A Multiscale Retinex for Bridging the Gap Between Color Images and the Human Observation of Scenes” (IEEE Transactions on Image Processing, vol. 6, No. 7, Jul. 1997).
Richard, et al., “Photographic Tone Reproduction for Digital Images” (acm Transactions on Graphics, Jul. 2002, vol. 21, No. 3).

Affiliated with

Also associated with

Rating

Image processing apparatus and method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Image processing apparatus and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image processing apparatus and method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3983471