Computer Science 1026A/B Chapter Notes -Gif, Analog Recording, Digital Pictures

• School: Western University
• Department: Computer Science
• Course: Computer Science 1026A/B
• Professor: Brian Langen

Document Summary

Topic 4: introduction to media computation: digital pictures. The processing of some collection of: picture element, sound fragment, movie frames, text files, web (html) pages. Digital data: the encoding of information in computer language (bits; 0s and 1s) Our eyes contain: rods that allow us to see black, white, and shades of gray, cones that allow us to see in color. Cones are sensitive to red, green, and blue light: all other colors are combinations of rods and cones at different intensities of light. Our eyes and brain work together to make sense of what we see. In an rgb model, all colors are combinations of red, green, and blue light at different intensities. White: full intensities of red, green, and blue (255,255,255) Black: zero intensity of red, green, and blue (0,0,0) Gray: intensity of red, green, and blue being equal (x,x,x) Red: full intensity of red, zero intensity of green and blue (255,0,0)