01:198:170 Lecture Notes - Lecture 1: Image Compression, Data Compression, Chrominance

• School: Rutgers University
• Department: Computer Science
• Course: 01:198:170
• Professor: goonetilleke

Document Summary

**to compare colors, convering to decimal is recommended. To darken color = subtract value from each pixel. To brighten color = add value from each pixel. To intensify = add small value to each dark pixel add large value to each light pixel. An image is a long sequence of rgb pixels. Image compression change the representaion in order to use fewer bits to store or transmit informaion. Example: faxes use a sequence of 0"s and 1"s that encode where the page is white (0) or black (1) The opposite of lossless compression is lossy compression. Humans cannot hear very high or very low frequency sound. Even small changes in luminance but not to small diferences in chrominance.