(self, x)
preprocess

        Preprocess to the input.

        Args:
            x: Raw input, it can be an image path, a numpy array and so on.

        Returns: Input data after preprocess.
preprocess
preprocess
def preprocess(self, x):
        """preprocess

        Preprocess to the input.

        Args:
            x: Raw input, it can be an image path, a numpy array and so on.

        Returns: Input data after preprocess.
        """
        pass
def preprocess ( self , x ) : pass