Color Image Processing in Digital Image

Dr. Mir Mohammad Azad, Md Mahedi Hasan , Mohammed Naseer K

The use of color in image processing is motivated by two principal factors.  First, color is a powerful descriptor that often simplifies object identification and extraction from a scene. Color image processing is divided into two major areas: full-color and pseudo-color processing.  In the first category, the images in question typically are acquired with a full-color sensor, such as a color TV camera or color scanner.  In the second category, the problem is on of assigning a color to a particular monochrome intensity or range of intensities. Until recently, most digital color image processing was done at the pseudo color level. However, in the past decade, color sensors and hardware for processing color images have become available at reasonable prices. The result is that full-color image processing techniques are now used in a broad range of applications, including publishing, visualization, and the Internet.