preprocessor_test.py 文件源码

def testRandomFlipBoxes(self):
    boxes = self.createTestBoxes()

    # Case where the boxes are flipped.
    boxes_expected1 = self.expectedBoxesAfterMirroring()

    # Case where the boxes are not flipped.
    boxes_expected2 = boxes

    # After elementwise multiplication, the result should be all-zero since one
    # of them is all-zero.
    boxes_diff = tf.multiply(
        tf.squared_difference(boxes, boxes_expected1),
        tf.squared_difference(boxes, boxes_expected2))
    expected_result = tf.zeros_like(boxes_diff)

    with self.test_session() as sess:
      (boxes_diff, expected_result) = sess.run([boxes_diff, expected_result])
      self.assertAllEqual(boxes_diff, expected_result)