In most computer displays, the screen image is composed of discrete units called pixels. Each pixel occupies a small rectangular region on the screen and displays one color at a time. The pixels are arranged so that they form a 2-dimensional array. Objects are drawn on the screen by adjusting the color of individual pixels. An ideal triangle and one broken down into pixels. The pixel representation has jagged edges and is not very pleasing to the eyes. The more densely pixels are packed on a display device, the less noticeable the jagged edges become. Images of different formats are...