Ok, along the lines of image fading, think might have found code, etc. to 
handle applying form of dynamic overall transparency effect to an image, and if 
so, could then cut out expanding pieces of an original image, and apply higher 
levels of transparency to the bigger instances and then do something like 
overlay them on each other using imagecopy() or imagecopyresize().

Either way, if you want to have a look at this page, you can tell me if it's 
operating/working at all - for now just trying to make sure dynamically applied 
transparency is working at all:
http://www.blindza.co.za/transparency/index.php

And, the actual code to implement the transparency is the following - from 
trans.php:
<?php session_start(); ?>
<?php
$iTransValue = 127;
//if form on index.php was submitted, I set session val
if (isset($_SESSION["iTransValue"])) {
$iTransValue = intval($_SESSION["iTransValue"]);
}
$img = imagecreatefrompng("./images/razor1.png");
imagealphablending($img, false);
imagesavealpha($img , true);
$trans_colour = imagecolorallocatealpha($img , 0, 0, 0, $iTransValue);
imagefill($img , 0, 0, $trans_colour);
header('Content-Type: image/png');
header("Content-Disposition: attachment; filename=\"razor1.png\"");
imagepng($img);
imagedestroy($img);
?>

Stay well

Jacob Kruger
Blind Biker
Skype: BlindZA
'...fate had broken his body, but not his spirit...'

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