Apparatus and method for equalizing histogram of an image

Details Apparatus and method for equalizing histogram of an image Apparatus and method for equalizing histogram of an image

2006-03-28

2006-03-28

Patel, Kanjibhai (Department: 2625)

Image analysis

Histogram processing

With a gray-level transformation

C382S167000, C358S003010, C358S003020, C345S690000, C345S691000

Reexamination Certificate

active

07020333

ABSTRACT:
An apparatus and method are provided to equalize a histogram using a cumulative distribution function (CDF) of an image. A model parameter estimator estimates parameters from the image using a Gaussian model. An error function storing unit stores error function values based on a Gaussian distribution. A CDF calculator calculates a CDF using one of the error function values from the error function storing unit and the estimated parameters. A histogram equalizer performs histogram equalization using the CDF.

REFERENCES:
patent: 5835163 (1998-11-01), Liou et al.
patent: 5949916 (1999-09-01), Chun
patent: 6061091 (2000-05-01), Van de Poel et al.
patent: 6078686 (2000-06-01), Kim
patent: 6125194 (2000-09-01), Yeh et al.
patent: 6154560 (2000-11-01), Cothren et al.

Affiliated with

Also associated with

Rating

Apparatus and method for equalizing histogram of an image does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus and method for equalizing histogram of an image, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for equalizing histogram of an image will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3559982