Introduction

Introduction - Computer Graphics Page 1 INTRODUCTION...

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Computer Graphics Page 1 INTRODUCTION Computer Graphics : As objects : images generated and/or displayed by computers. As a subject : the science of studying how to generate and display images using computers. Why : a picture is worth ten thousand words Classifications : Dimensions : 2 or 3 Types : vector, raster Vector Graphics : deals with points, lines and shapes. Raster Graphics : deals with raster images. A raster image is a 2D grid of colored dots. Each dot is called a p2(x2,y2) p1(x1,y1)
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Page 2 pixel ( picture element). Each horizontal line of pixels is called a scan line. Display Hardware : CRT Display : 1950, MIT, for the Whirlwind computer (a vector display device). All modern computers use rater display devices. Visual Realism : to make computer generated images look as real as possible. Techniques for generating realistic perceptions: Depth : hidden surface removal, foreshortening, and depth cueing. Direction
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Introduction - Computer Graphics Page 1 INTRODUCTION...

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