A Novel 3-D Color Histogram Equalization Method With Uniform 1-D Gray Scale Histogram

The majority of color histogram equalization methods do not yield uniform histogram in gray scale. After converting a color histogram equalized image into gray scale, the contrast of the converted image is worse than that of an 1-D gray scale histogram equalized image. We propose a novel 3-D color h...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on image processing 2011-02, Vol.20 (2), p.506-512
Main Authors: HAN, Ji-Hee, YANG, Sejung, LEE, Byung-Uk
Format: Article
Language:English
Subjects:
3-D color histogram equalization
Algorithms
Applied sciences
Color
Color image enhancement
Correlation
Detection, estimation, filtering, equalization, prediction
Equalization
Exact sciences and technology
Gray scale
gray scale histogram equalization
Histograms
Image color analysis
Image contrast
Image enhancement
Image processing
Information, signal and communications theory
Pixel
Probability density functions
Signal and communications theory
Signal processing
Signal, noise
Telecommunications and information theory
Three dimensional displays
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The majority of color histogram equalization methods do not yield uniform histogram in gray scale. After converting a color histogram equalized image into gray scale, the contrast of the converted image is worse than that of an 1-D gray scale histogram equalized image. We propose a novel 3-D color histogram equalization method that produces uniform distribution in gray scale histogram by defining a new cumulative probability density function in 3-D color space. Test results with natural and synthetic images are presented to compare and analyze various color histogram equalization algorithms based upon 3-D color histograms. We also present theoretical analysis for nonideal performance of existing methods.
ISSN:1057-7149
1941-0042
DOI:10.1109/TIP.2010.2068555