Transparent GIF Image Aliasing

The mistake amateurs make with transparent GIF files is
not to prepare them for the background that they will be used on.

 

 

This transparent GIF file has not been prepared properly for the background. Notice the fringe around the edges. This is called aliasing.

 

(Note: technically, the file was prepared using anti-aliasing technology, but because it produced visible results like this, it can be called aliased).

By preparing the original file against a brown background BEFORE setting transparency, the aliased edges are not visible. This is called anti-aliasing.

© 2004 Dan Vaughan