Web Graphics - Details
Web graphics is a broad term used to describe any of the follow
computer-based media:
- drawings
- photos
- illustrations
- visual decoration in general
Perhaps the best way to start including graphics on your web page is to use
some of the ready-made graphics available. See
Where to get Graphics.
Graphic Types
GIF (Graphics Interchange Format) is a very common file format,
supported on most platforms. Maximum color depth is 8 bit, with a maximum
display of 256 colors. There are two variants; GIF '87, and GIF '89, which
includes added support for color cycling and transparency, among other things.
GIF is best for flat colour images such as a poster or cartoon.
JPEG ( Joint Photographic Experts Group) supports a maximum color
palette of 16 million. JPEG is best for photographic images.
See JPG vs GIF format graphics
for a comparison of these graphics types.
Making best use of your graphics
Adding a slow loading and superfluous graphic will in fact detract more from
your web design than it adds. Try to have your graphic enhance the general
message rather than detract or even divert from it. In addition, be aware that
large graphics will slow the download time of your page and run the risk of
frustrating the viewer. For example, an graphic of size 3K seems quite small,
but it will take the same time to download as approximately 500 words!
See When NOT to use graphics and
Reducing file size.
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