COMPSCI 105 Lecture Notes - Lecture 7: Colour Banding, Joint Photographic Experts Group, Scalable Vector Graphics

• School: UMASS-Amherst
• Department: Computer Science
• Course: COMPSCI 105
• Professor: William Verts

Document Summary

First stores colors directly, last 3 use a palette. Not a good choice for the web due to size. Converting a . bmp to . jpg changes some pixels. Graphics interchange format (compuserve 1987, 1989), pronounced jiff . Ok but not great for photographs (color banding) All formats so far (. bmp, . jpg, . gif, . png) are pixel-based formats. Painting new object over old changes the old. Scaling up shows a bad case of artifacts (jagged edges) Looks good when scaled up or down in size. Not all browsers fully support . svg (in particular, internet explorer) Named after pierre bezier (auto designer with renault) Y is not a function of x, locking graph to the coordinate axes, but . Both x and y (and z if we go to 3 dimensions) are now functions of a new independent variable, the parameter, often called t.