'Transpose the coordinate representation in a boxlist.
Args:
scope: name scope of the function.'

def transpose_coordinates(self, scope=None):

    with tf.name_scope(scope, 'transpose_coordinates'):
        (y_min, x_min, y_max, x_max) = tf.split(value=self.get(), num_or_size_splits=4, axis=1)
        self.set(tf.concat([x_min, y_min, x_max, y_max], 1))
