Computer Science 1033A/B Chapter Notes - Chapter 3: Raster Graphics, Vector Graphics, Digital Image

• School: Western University
• Department: Computer Science
• Course: Computer Science 1033A/B
• Professor: Bryan Sarlo

Document Summary

Graphics: any combination of artwork, diagrams, imagery, text, or inscriptions. May be hand-drawn, written, computer generated, or a combination of them all. We see graphics every day without noticing it. Designs on food packaging, street signs, advertisements, smartphones, computers, etc. are all forms of graphics. Graphics are arguably the oldest form of media, dating back to the prehistoric era where cavemen/women drew symbols to document their life stories & communicate it with others. Graphics are still as important in communication today as they were back then. Graphics are usually stored as a grid of tiny, colored cells called pixels. Pixels: smallest, most basic unit of programable color for a digital image or graphic that can be displayed on a digital device. Each pixel contains exactly one color ie: colored pegs being placed in a pegboard with only one peg being placed in each hole on the board. Pixel-based graphics are the only format used for digital photographs.