Processing of Satellite Image Using Digital Image Processing

Pictures are the most effective means of conveying information. A picture is worth a thousand words. Pictures concisely convey information about positions, sizes and interrelationships between objects. Human beings are good at deriving information from such images, because of our innate visual and mental abilities. About 75% of the information received by human is in pictorial form. The paper describes the basic technological aspects of digital image processing with special reference to satellite image processing. Basically all satellite images processing information can be grouped into three categories. Image rectification and restoration Image enhancement Information extraction The former deals with initial processing of raw image data to correct for geometric distortion, the enhancement procedures are applied to image data in order to effectively display the data for subsequent visual interpretation. The intent of classification process is to categorize all pixels in a digital image into one of several land cover classes or themes. This classified data may be used to produce thematic maps of the land cover present in an image. Our paper comprises of the above stated actions on the data from satellite image (IRS –P6) by LISS-III sensor of 23.5mresolution of 55o7 region on topo sheet. Thus, working on the satellite image we extracted information which has brought us to valuable conclusions, which reveals how image processing can be maneuvered