'Delete the given image.
:raises ImageNotFound: if the image does not exist.
:raises NotAuthorized: if the user is not an owner.'

def delete(self, context, image_id):

    try:
        self._client.call(context, 'delete', image_id)
    except glanceclient.exc.NotFound:
        raise exception.ImageNotFound(image_id=image_id)
    return True
