Computer Science 1033A/B Lecture Notes - Lecture 3: 5,6,7,8, Cmyk Color Model, Digital One

• School: Western University
• Department: Computer Science
• Course: Computer Science 1033A/B
• Professor: Vivi Tryphonopolous

Document Summary

We rely on images for information, explanations, entertainment. Graphics originate from: non-digital medium (paper copy of a photo), outside world, create image. Digitization: the process of translating a piece of information (text, images, sound recording, video) into binary digits (bits) Bit: short for binary digit, value of 1 or 0 fundamental units of information in a computer system. When press a key, binary code sent to ram (memory) (cid:0) cpu (cid:0) video card (cid:0) on screen. Binary: (2 binary digits/bits) o,1, 10, 11, 100, 101, 111 1000. Octal: (8 digits - or think of it as 8 number values) 0, 1, 2, 3, 4, 5, 6, 7, Decimal: (10 digits) 0, 1, 2, 3, 4, 5, 6, 7, 8, 9. Hexadecimal: (16 digits) 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, a, b, c, d, e, f. If a pixel color is represented by 2 bits. Thus, 2 bit allows for 4 colours (2squared - 4)