JPR_V2_N2_RevP2 Elavaar Kuzhali S. Suresh D.S. Journal on Pattern Recognition 2350-112X 2 2 46 55 Microarray Image Processing, Filtering and Enhancement Techniques, Segmentation Techniques Microarray image enhancement and segmentation procedure are the rudimentary processing steps to obtain high quality image data that would truly reflect the underlying biology in the samples. Robust enhancement and segmentation has been the subject of research for many years, and it is important to understand these crucial steps. Reducing noise from the original image is still a challenging problem. It is important to preserve features like edges and sharp structures for better visualization and further analysis. After denoising, segmentation process is a vital step in microarray image. Selection of suitable algorithm for image segmentation is a very difficult task for a particular type of image although extensive work has been proposed. In this paper, the authors outline fundamental concepts of various existing algorithms, its advantages and limitations for microarray images. These algorithms are classified into various categories and a brief description and analysis of these algorithms is presented. This is an initiative to study, analyze and to provide future direction for research in the areas of microarray enhancement and segmentation techniques. June - August 2015 Copyright © 2015 i-manager publications. All rights reserved. i-manager Publications http://www.imanagerpublications.com/Article.aspx?ArticleId=3568