Image processing pertains to the alteration and analysis of pictorial information .Common case of image processing is the adjustment of brightness and contrast controls on a television set by doing this we enhances the image until its subjective appearing to us is most appealing .The biological system receives, enhances, and analyzes and stores images at enormous rates of speed.Image processing is a subclass of signal processing concerned specially with pictures. Improve image quality for human perception and /or computer interpretation. Image Enhancement. Image processing is any form of signal processing for which the input is an image, such as photographs or frames of video; the output of image processing can be either an image or a set of characteristics or parameters related to the image. Most image-processing techniques involve treating the image as a two-dimensional signal and applying standard signal-processing techniques to it.
