/**
* Converts the image to grayscale.
*
* @param string $view The view (screen, full, etc...) to work with.
*
* @throws Ansel_Exception
*/
public function grayscale($view = 'full')
{
$this->load($view);
$this->_dirty = true;
try {
$this->_image->grayscale();
} catch (Horde_Image_Exception $e) {
throw new Ansel_Exception($e);
}
}
