Computer Science 1033A/B Lecture 4: Lec4 - Graphics

• School: Western University
• Department: Computer Science
• Course: Computer Science 1033A/B
• Professor: Laura Reid

Document Summary

Less pixels = larger images/textt, less fits on screen. Common screen resolutions: 640x640, 600x800, 1024x768 (most common), 1280x1024. Amount of screen a picture takes up depends on: size of picture, screen resolution, not dpi. More pixels= smaller text/image, more on screen is equal to 100% zoom level, pictures are crisp. When printing an image, ensure that it is at least 300 dpi. More pixels = larger file size, but dpi/ppi does not make a difference in file size. On the web, you want the smallest file size but still have a good size picture large file sizes will take a long time to download when on a webpage. 1 bit = 2 colours, 2 bits = 4 colours, 4 bits = 16 colours. Used for printing, refers to ink on a page. Primary colours are cyan, magenta, yellow and black. When ink is applied, it removes the white (paper colour) adding light to a black background (the monitor)