Image processing is a method to convert an image into digital form and perform operations on it and in order to get an enhanced image or to extract some useful information from it. It is a type of signal dispensation in which input is image, like video frame or photograph and output may be image or characteristics associated with that image. Usually Image Processing system includes treating images as two dimensional signals while applying already set signal processing methods to them. It is among rapidly growing technologies today, with its applications in various aspects of a business.
Image Processing forms core research area within Engineering Computer Science disciplines too . Image processing basically includes the following three steps 1. Importing the image with optical scanner or by digital photography. 2. Analysing and manipulating the image which includes data compression and 3.image Enhancement and spotting patterns that are not to human eyes like satellitephotographs.4. Output is the last stage in which result can be altered image or report that is based on image analysis.