image resize problem

[eluser]hamzakhan[/eluser]
here is my controller

Code:

<?php
/**
*
*  
*/
class Image extends Controller {
        
    function Image()
    {
        parent::Controller();
    }
    
    function index()
    {
        
        $this->load->library('image_lib');
$config['image_library'] = 'gd2';
$config['source_image'] = '/server/sscart/assets/images/catagory/mypic.jpg';
$config['create_thumb'] = TRUE;
$config['maintain_ratio'] = TRUE;
$config['width'] = 25;
$config['height'] = 25;

$this->image_lib->resize();


    }
}
?>

image is not resizing please help me