How to get the URL of an attachment as used in the post

Hello,

I can’t figure out how to get the real images URLs from a post. Below is the function I use to get the URLs of the images from a specific post.

private function get_images($post_id) {
	$images = array();
	$argsThumb = array(
		'order'          => 'ASC',
		'post_type'      => 'attachment',
		'post_parent'    => $post_id,
		'post_mime_type' => 'image',
		'post_status'    => NULL
	);
	$attachments = get_posts( $argsThumb );
	if ( $attachments ) {
		foreach ( $attachments as $attachment ) {
			log_me( wp_get_attachment_url( $attachment->ID ) );
			log_me( $attachment->post_title );
			log_me( $attachment->post_name );
			log_me( print_r( $attachment, true ) );
			$images[] = wp_get_attachment_url( $attachment->ID );
		}
	}
	return $images;
}

This code works great, but it doesn’t give the real URL of the images in the post. E.g. in the post there is an image with URL http://localhost/blog/wp-content/uploads/2013/04/example-300×183.jpg

Unfortunately, the function above will only return http://localhost/blog/wp-content/uploads/2013/04/example.jpg

Anyone has an idea how to get *the actual images* used in a specific post?

Thank you