What is Image Processing?
Image Processing is an action undertaken using sophisticated software, such as Erdas Imagine, PCI, ENVI and ER Mapper to alter digital images. These image processing software packages have extensive tools specifically designed to access and process multispectral, hyperspectral, radar and airbourne imagery. Image processing involves the manipulation of the pixels of one image to form another image. Various operations may be performed on the pixels of the original image to produce the new image. These operations may be performed on each pixel in isolation or relative to other pixels in the image. The purpose of image processing is: • to improve the visual appearance of images, or • to prepare images for measurement of features and structures present. More specifically, image processing may be used to, for example: • clean up an image by removing noise • improve the contrast in an image • highlight elements with certain characteristics in an image • overcome distortions such as blurring o
Image processing is a physical process used to convert an image signal into a physical image. The image signal can be either digital or analog. The actual output itself can be an actual physical image or the characteristics of an image. The most common type of image processing is photography. In this process, an image is captured using a camera to create a digital or analog image. In order to produce a physical picture, the image is processed using the appropriate technology based on the input source type. In digital photography, the image is stored as a computer file. This file is translated using photographic software to generate an actual image. The colors, shading, and nuances are all captured at the time the photograph is taken the software translates this information into an image. When creating images using analog photography, the image is burned into a film using a chemical reaction triggered by controlled exposure to light. The image is processed in a darkroom, using special c
