Any limitation on image size?

[coderage]

Hi plz see this code

<?php

        define("T_WIDTH", 300);

        define("T_HEIGHT", 300);

 

        $img = imagecreatefromjpeg("image1.jpg");

        $img_copy = imagecreate(T_WIDTH, T_HEIGHT);

 

        imagecopy($img_copy,$img,0,0,2000,2000,T_WIDTH,T_HEIGHT);

 

        header("Content-type: image/jpeg");

        imagejpeg($img_copy);

       

        imagedestroy($img);

        imagedestroy($img_copy);

?>

 

When image1.jpg = 4000x4000 pixels and 1.22 Mb in size this code works, but when

        image1.jpg = 8000x4000 pixels and 2.07 Mb there is no output and no error msg either.

 

In php.ini file memory_limit is set to 128 Mb

System Ram 256 Mb

 

Solutions and suggestions please.

[coderage]

Kindly sum1 suggest some solution.....