An Approach to Color Image enhancement Using Modified Histogram

An Approach to Color Image enhancement Using Modified Histogram

  ijett-book-cover  International Journal of Engineering Trends and Technology (IJETT)          
  
© 2013 by IJETT Journal
Volume-4 Issue-9                      
Year of Publication : 2013
Authors : P.Padmaja , U.Pavan Kumar

Citation 

P.Padmaja , U.Pavan Kumar. "An Approach to Color Image enhancement Using Modified Histogram". International Journal of Engineering Trends and Technology (IJETT). V4(9):4165-4172 Sep 2013. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group.

Abstract

Image enhancement is one of the key issues in high quality pictures such as digital camera and HDTV. Since Image clarity is very easily affected by lighting, weather, or equipment that has been used to capture the image. These conditions lead to image may suffer from loss of information. In this paper a new technique is introduced to enhance color images with dim regions ,In this technique the lightness component in YIQ color space is transformed then the traditional histogram equalization (HE) method is applied on Y component. The result of modified histogram equalization (MHE) algorithm has been compared with the result of other method like Adaptive Integrated Neighborhood Dependent Approach for Nonlinear Enhancement of Color Images (AINDANE), traditional histogram equalization and Homomorphic Filtering. All algorithms have implemented using Matlab.

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Keywords
Histogram equalization, Homomorphic Filtering, color space, nonlinear enhancement .