本文整理汇总了Python中object_detection.core.preprocessor.random_vertical_flip方法的典型用法代码示例。如果您正苦于以下问题：Python preprocessor.random_vertical_flip方法的具体用法？Python preprocessor.random_vertical_flip怎么用？Python preprocessor.random_vertical_flip使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类object_detection.core.preprocessor的用法示例。
在下文中一共展示了preprocessor.random_vertical_flip方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: testRandomVerticalFlipWithEmptyBoxes
# 需要导入模块: from object_detection.core import preprocessor [as 别名]
# 或者: from object_detection.core.preprocessor import random_vertical_flip [as 别名]
def testRandomVerticalFlipWithEmptyBoxes(self):
preprocess_options = [(preprocessor.random_vertical_flip, {})]
images = self.expectedImagesAfterNormalization()
boxes = self.createEmptyTestBoxes()
tensor_dict = {fields.InputDataFields.image: images,
fields.InputDataFields.groundtruth_boxes: boxes}
images_expected1 = self.expectedImagesAfterUpDownFlip()
boxes_expected = self.createEmptyTestBoxes()
images_expected2 = images
tensor_dict = preprocessor.preprocess(tensor_dict, preprocess_options)
images = tensor_dict[fields.InputDataFields.image]
boxes = tensor_dict[fields.InputDataFields.groundtruth_boxes]
images_diff1 = tf.squared_difference(images, images_expected1)
images_diff2 = tf.squared_difference(images, images_expected2)
images_diff = tf.multiply(images_diff1, images_diff2)
images_diff_expected = tf.zeros_like(images_diff)
with self.test_session() as sess:
(images_diff_, images_diff_expected_, boxes_,
boxes_expected_) = sess.run([images_diff, images_diff_expected, boxes,
boxes_expected])
self.assertAllClose(boxes_, boxes_expected_)
self.assertAllClose(images_diff_, images_diff_expected_) 示例2: test_build_random_vertical_flip
# 需要导入模块: from object_detection.core import preprocessor [as 别名]
# 或者: from object_detection.core.preprocessor import random_vertical_flip [as 别名]
def test_build_random_vertical_flip(self):
preprocessor_text_proto = """
random_vertical_flip {
keypoint_flip_permutation: 1
keypoint_flip_permutation: 0
keypoint_flip_permutation: 2
keypoint_flip_permutation: 3
keypoint_flip_permutation: 5
keypoint_flip_permutation: 4
}
"""
preprocessor_proto = preprocessor_pb2.PreprocessingStep()
text_format.Merge(preprocessor_text_proto, preprocessor_proto)
function, args = preprocessor_builder.build(preprocessor_proto)
self.assertEqual(function, preprocessor.random_vertical_flip)
self.assertEqual(args, {'keypoint_flip_permutation': (1, 0, 2, 3, 5, 4)})