JSE_V4_N3_RP4 P.V.N. Reddy K. Satya Prasad Journal on Software Engineering 2230 – 7168 4 3 23 27 Content-Based Image Retrieval CBIR, Feature Extraction, Information Retrieval, Image Retrieval, Image Databases, Wireless Communication, Mobile Learning In this paper a retrieval study for natural image learning environment is proposed. The content of this paper is a result of projects called Image content-based retrieval on a natural image database. The objective of this project is to develop an image content-based search engine, which can perform identity check of a natural image. It is well known that conventional natural image databases can only be retrieved by text-based query. In this paper the authors use the shape, color, and other features extracted from a captured natural image to search the natural image database. The developed technique is able to perform scale, translation, and rotation invariant matching between natural images. Currently, the database contains several hundreds of natural images. In future, they shall enhance the capability of the search engine to deal with more than 30,000 natural image species, which is the total amount of natural image species along the coast. January - March 2010 Copyright © 2010 i-manager publications. All rights reserved. i-manager Publications http://www.imanagerpublications.com/Article.aspx?ArticleId=1114