Access wordpress post images uploaded and inserted through gallery function

wp-post-images

<?php

    $args = array(
		'numberposts' => -1, // Using -1 loads all posts
		'orderby' => 'menu_order', // This ensures images are in the order set in the page media manager
		'order'=> 'ASC',
		'post_mime_type' => 'image', // Make sure it doesn't pull other resources, like videos
		'post_parent' => $post->ID, // Important part - ensures the associated images are loaded
		'post_status' => null,
		'post_type' => 'attachment'
	);

	$images = get_children( $args ); 

    if($images){ ?>
	    <div id="slider">
		    <?php foreach($images as $image){ ?>
		        <img src="<?php echo $image->guid; ?>" alt="<?php echo $image->post_title; ?>" title="<?php echo $image->post_title; ?>" />
		    <?php	} ?>
	    </div>
  	<?php } ?>