If you can't or don't want to install GD Lib but still want to be able to manipulate images then this may be of interest to you. Particularly if you want to produce some simple bar graphs as I did.
First of all create a 2*10 pixel gif image (called bar.gif in this eaxmple)
then have a look at the script below and modify it to suit your own needs
<?php
// set the graphic scaling value
// use this to increase the size of the graphics
$scale="1.5";
// Use your own values here ie results from mysql query etc
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