gd library backgrounds

[fooDigi]

how can i strip all the white space on the outer edges of this image with the gd library? or make transparent. i need to stick backgrounds in many images on-the-fly.

Thx for any help.

[Barand]

With difficulty!

 

I tried this code on your image hoping to give it a blue background which could then be defined as transparent. But there seems to be substantial anti-aliasing around the image which, although it appears white, isn't.

 

<?php
$im = imagecreatefromjpeg('2006-Honda-CR125R-small.jpg');
$blue = imagecolorallocate($im, 0x00, 0x00, 0xFF);
imagefill($im, 0,0,$blue);
imagejpeg($im);
imagedestroy($im);
?>