Resize image in magento

Resize image in magento
<?php  
/*Existing Image Path*/
     $currentimagePath = Mage::getBaseDir('media') . DS . 'alice_banner'. DS . $value->getFilename();
/*Resized Image Path*/     
     $rszImagePath = Mage::getBaseDir('media') . DS . 'alice_banner'. DS . 'cache' . DS .'1160x525' .DS. $value->getFilename();
     if (!file_exists($rszImagePath)) {
         $image = new Varien_Image($currentimagePath);
         $image->resize(1160, 525);
         $image->save($rszImagePath);
     }
?>
/*Final Image*/
<img src="<?php echo Mage::getBaseUrl('media') . DS . 'alice_banner'. DS . 'cache' . DS .'1160x525' .DS. $value->getFilename(); ?>"/>