Gif – GraphicInterchange Format Created by CompuServe in 1987 Pronounced “jiff” emphasis on “J” Adopted by the World Wide Web in early 1990
GIF Standard format no need for plug-in Best for solid color images Supports 256 (8 bit) color palette Support interlacing Support transparency Supports animation
Summary All web browsers support the GIF format without the need for additional plug-ins. Images of solid color look best and are smallest when saved in the GIF format. GIF file types support interlacing, transparency and animation.
JPG - Joint PhotographicExperts Group JPG – Pronounced as “jay – peg” Named after the committee that created it First jpeg standard approved in Sept 1992
JPG Also standard format without the need for plug-in Supports millions of colors (24bit) Best for photographs Provides compression
Summary All web browsers support the jpg format without the need for plug-ins. Photographs and continuous tone graphic look best, and are smaller when you save them in the jpg format. Huge lossy compression is possible up to a hundred time smaller JPG support millions of colors (24 bit)
PNG, PortableNetwork Graphics Pronounced “ping” It’s one of the most flexible formats on the web. Support multiple color types
PNG Uses compression to support smaller file sizes. Allows you to store 256 levels of partial transparency. Supports interlacing. Capacity for gamma correction
Summary PNG supports a number of different color depths. Uses compression to support smaller files Support variable transparency and interlacing Has the capacity to correct differences in how monitors display images.
Disadvantage Not all graphic programs have the ability to create and edit PNG file types. Depending on your browser you may need to download plug-ins.
References Multimedia for the web revealed -By Calleen Coorough and Jim Shuman. The GIF Pronunciation Page - http://www.olsenhome.com/gif/ Opening music by -Daniel_Innala_Ahlmark_-_Fantasi_E-dur Closing music by -Daniel_Innala_Ahlmark_-_Fantasi_E-dur Narrated by Tracy Mattocks, HACC design student.