Imaging and image processing

Image Processing is a process to convert an image into digital form and perform some operations on it , to get an enhanced image or to extract some useful information from it. It is a type of signal dispensation in which the input can be image, like video frame or photograph and output, may be image or characteristics associated with that image.
Image Processing basically includes the following three steps.
First we have to import the image with optical scanner or by digital photography and then analyzing and manipulating the image which includes data compression and image enhancement and spotting patterns that are not to human eyes like satellite photographs. Finally result can be altered image or report that is based on image analysis in the final output stage.

There are two types of methods for Image Processing. They are Analog and Digital Image Processing.  Analog or visual techniques of Image Processing is  used for the hard copies like printouts and photographs. Digital Image processing is a technique helps in manipulation of the digital images by using computers.