Graphic Design ISC325 October 19, 2005 Today Review Web Graphic F & F Ch. 4, HTML Tutorial 3 Web Accessibility Other technical issues Review Web Design with Tables and Forms Writing for the Web Color Harmony Web Graphics Color Displays Screen resolution
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October 19, 2005
Pixels and color depth
True-color: Red, Green, and Blue
Image appears one line at a time
entire image is retrievedNoninterlaced Graphic
This figure shows how a noninterlaced GIF appears as it is slowly
retrieved by the Web browser.
If the graphic is large, it might take several minutes for the entire image to appear, which can frustrate the visitors to your Web page.
image starts to show more detail
final image is crisp and detailedInterlaced Graphic
This figure shows the effect of interlacing, which is when the graphic starts out as a blurry representation of the final image, then gradually comes into
focus-unlike the noninterlaced graphic, which is always a sharp image as it’s being retrieved, although an incomplete one.
This figure shows a list of programs available on the Web that you can
use to create your own animated GIFs.
If you don’t want to take the time to create your own animated GIFs, many animated GIF collections are available on the Web. This figure shows a list of a few of them.
A hyperlink to another page
represents a folder (directory)