public function scale( $width, $height = NULL, $interpolate = TRUE )
	{
		if( is_null( $height ) )
			$height	= $width;
		if( $width == 1 && $height == 1 )
			return FALSE;
		$width	= (int) round( $this->image->getWidth() * $width );
		$height	= (int) round( $this->image->getHeight() * $height );
		return $this->resize( $width, $height, $interpolate );
	}