Computer Science 1033A/B Lecture Notes - Joint Photographic Experts Group, Adobe Photoshop, Glossary Of Computer Graphics

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

Document Summary

For printing, quality comes before file size. For web pages, file size comes before quality, because the webpage has to be downloaded fast to be competitive. The challenge of webpage creation is to keep file size small, and maintain the quality as much as possible. Commonplace image format used on the internet. Supports a maximum of 8-bit color scheme (256 colors) Best for solid, flat colors, such as illustration, animation, text, and buttons. Not best for photos, and does not support sound. Tiny file size in comparison to . jpg. Saving an image with 24 bit color as a gif will lower the quality immediately. Common image format used on the internet. Supports maximum of 24-bit color scheme (16 million colors) Good for photos, computer games, screen shots, stills from movie. Best for blends of colors, softer shadow effects, subtle changes in color. Not best for well-defined lines or sharp contrasts between colors. Much larger size in comparison to . gif.