Remove p tags from images in WordPress

With following snippet you can remove the p tags from images adding it at the end of your functions.php file.

function filter_ptags_on_images($content){
    return preg_replace('/<p>\s*(<a .*>)?\s*(<img .* \/>)\s*(<\/a>)?\s*<\/p>/iU', '\1\2\3', $content);
}

add_filter('the_content', 'filter_ptags_on_images');