Note: We're
using a bright background here to show the halo effect better. Normally, on a
page with lots of text you would want a different background that is not as strong
or bright - unless your audience is kids or perhaps teenagers.
Images
that are imported to Web pages can have a halo effect as shown here
if you are not careful. This is because the GIF format does not support
more than a single transparent color, and in the anti-aliasing process
the dithered colors can remain.
To eliminate the halo,
paste the image into a Photoshop rectangular image with a background
of the same background color as the final Web page. Photoshop will
then dither the image to that background. Then save the image with
the background (using the Web palette) and layer this into your Web
page with the HTML editor.
Tip: If you have trouble following
this, copy each picture to your editor and see the difference. The first
image was set up against a white background, and then the background was
dropped to transparent and the image saved. The second image was set as
a second level on top of a background that was the same color as this screen.
There was no transparency.
Note: Try
if possible to always anti-alias images pasted to a Web page from Photoshop.
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Microsystems
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