Digital Image processing deals with digital images performing mathematical operation upon it with the help of digital computer to extract desired information . Digital Image processing is the branch of digital signal processing in which first we convert an image into the digital signal with the help of a digital camera and computer then store this image into a computer. Once image is stored into the computer then it is converted into the two dimensional matrix of numbers. Now we can perform any mathematical operation with these numbers and can modify or transform these numbers in to the desired way and can extract an information. This process of modifying or extracting the desired information from digital image is called digital image processing.