This book throws light on different ways and techniques of image processing by the use of GIS and ERDAS. This book also gives a deep knowledge of GIS and creation of different layers using GIS. For this, different GIS components are also explained. This book also covers rectification process using ERDAS. Therefore, it emphasizes the use of GIS and ERDAS in extracting useful information of image by image processing by various methods. This book also explains raster data and vector data. The book explain image processing by using the basic concepts of GIS and ERDAS. This book can prove to be a helpful and useful tool for GIS and ERDAS professionalists, students, researchers, industrialists etc. Therefore by the development of GIS skill by understanding the basic concepts of image processing, This book can be worthwhile for management of agriculture, cartography, city management and urban planning.