MMDT1021 Chapter 5 Notes - page 1
| JPEG - Joint Photographic
Expert Group .jpg |
GIF - Graphics Interchange
Format .gif |
PNG -Portable Network
Graphics .png |
|
| Color Depth | Up to 24 bit color (16.7 million colors) | Up to 8 bit color (256 colors) | Up to 24 bit color (16.7 million colors) |
| Compression Type | Lossy - clarity degrades | Not lossy | Not lossy |
| Transparency | Not supported | Supported | Supported |
| Animation | No | Yes | No |
| Best used with: | Color photographs or graphics that have many hues. | Line art, cartoon art, graphics with a small number of colors. | Line art and graphics with a small number of
colors generates small file sizes.
Color photographs tend to generate large file sizes. |
| Other: | LZW compression algorithm used to encode/decode a gif image is owned by Unisys | Now supported in all modern browsers. |