| This is a widely used format made available by Compuserv (subject to licensing restricitions by Unisys). |
| The image data stored in a GIF file is LZW compressed. |
| The GIF formats allow for a header, logical screen descriptor and global color table at the beginning. Then for each image, there is a local image descriptor, a local color table and the image data. GIF89 adds other extension blocks of control information. |
| One of the options for storing the image is as ³interlaced². In this scheme, the rows are stored in the order of first and halfway, then the rows halfway inbetween, those and so on. |
| Allows from 1 to 8 bit color. |
| Reasonably fast to decompress. |