Remove <p> tags from images in Wordpress

<?php
// img unautop, Courtesy of Interconnectit http://interconnectit.com/2175/how-to-remove-p-tags-from-images-in-wordpress/
function img_unautop($pee) {
    $pee = preg_replace('/<p>\\s*?(<a .*?><img.*?><\\/a>|<img.*?>)?\\s*<\\/p>/s', '<figure>$1</figure>', $pee);
    return $pee;
}
add_filter( 'the_content', 'img_unautop', 30 );
?>