About Web Images
This assignment continues our study of graphics with a reading from chapter 11 of the Web Style Guide.
Objectives
After completing this assignment, students should be able to
- Identify and discuss the characteristics of the five file formats important for online images and listed in the table below.
- Summarize the “best practices” for archiving web site images 332-33.
- Explain the reasoning behind this recommendation: “Save your original uncompressed images!” (332).
- Summarize the rules of thumb that apply when choosing the right file format for images
| Format | Compression | Ownership | Best for |
|---|---|---|---|
| JPG | Lossy | Open Source | Photographic |
| PNG | Lossless | Open Source | Diagrammatic |
| GIF | Lossless | Now open source | Diagrammatic |
| PSD (Adobe Photoshop) | Lossless | Proprietary | Photographic |
| AI (Adobe Illustrator) | Lossless | Proprietary | Diagrammatic |
Readings
- Lynch and Horton, 327-336
(through “Photographs and Illustrations” on 336)
