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Graphic asset production
Support Material
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Starting from a photographic quality original, two main options are outlined for making the files smaller. JPEG compression is the international standard for compressing photographic images and is widely used on the Web. |
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An alternative to JPEG compression is reducing the number of colours (also known as colour or bit depth) in the image. Of course, different displays may have different numbers of colours as well |
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We have used the abbreviation RGB quite often but you may be unclear as to exactly what it means. This document gives background information on how colours can be formed from red, green and blue. |
Books
Foley JD, van Dam A, Feiner SK and Hughes JF
(1996) |
Computer Graphics, Principles and Practice, 2nd edn in C
Reading, MA: Addison-Wesley |
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Siegel D
(1997) |
Creating Killer Web Sites, 2nd edn
Indianapolis, IN: Hayden Books |
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Links
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Not only an example of how a web standard is written but a clear explanation of technical aspects of images such as gamma. |
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Free web-based tool for optimising your site graphics |
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Book 2 Chapter 8 - Graphics asset production