Image processing device that quickly performs retinex process

Details Image processing device that quickly performs retinex process Image processing device that quickly performs retinex process

2011-03-22

2011-03-22

Couso, Yon (Department: 2624)

Image analysis

Image enhancement or restoration

C382S274000

Reexamination Certificate

active

07912308

ABSTRACT:
An image processing device includes a retinex-value calculating portion, a normalizing-parameter reading portion, a normalizing portion, and a correcting portion. The retinex-value calculating portion calculates a retinex value of each pixel in an original image based both on a pixel value of a subject pixel and on a peripheral average luminance of the subject pixel, The normalizing-parameter reading portion reads an upper limit and a lower limit for performing normalization. The normalizing portion normalizes the retinex value based on the upper limit and the lower limit, thereby obtaining a normalized retinex value for each pixel in the original image. The correcting portion corrects the original image based both on the normalized retinex value and on the pixel value for each pixel in the original image, thereby obtaining a corrected image.

REFERENCES:
patent: 6885482 (2005-04-01), Kubo et al.
patent: 6947176 (2005-09-01), Kubo et al.
patent: 7298917 (2007-11-01), Sakatani et al.
patent: 7760943 (2010-07-01), Shaked
patent: 2003/0012448 (2003-01-01), Kimmel et al.
patent: 2004/0091164 (2004-05-01), Sakatani et al.
patent: 2001-69525 (2001-03-01), None
patent: 2001-78025 (2001-03-01), None
patent: 2003-333331 (2003-11-01), None
patent: 2005-004510 (2005-01-01), None
patent: 2005-515515 (2005-05-01), None
patent: 2005-176171 (2005-06-01), None
patent: 3731577 (2005-10-01), None
patent: WO 2005/036870 (2005-04-01), None
Japanese Official Action dated Sep. 14, 2010 with English language translation.

Affiliated with

Also associated with

Rating

Image processing device that quickly performs retinex process 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 device that quickly performs retinex process, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image processing device that quickly performs retinex process will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2661405