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225 lines
9.3 KiB
225 lines
9.3 KiB
# Copyright 2019 Huawei Technologies Co., Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# ==============================================================================
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"""
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Testing RandomRotation op in DE
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"""
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import numpy as np
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import cv2
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import mindspore.dataset as ds
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import mindspore.dataset.transforms.py_transforms
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import mindspore.dataset.vision.c_transforms as c_vision
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import mindspore.dataset.vision.py_transforms as py_vision
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from mindspore.dataset.vision.utils import Inter
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from mindspore import log as logger
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from util import visualize_image, visualize_list, diff_mse, save_and_check_md5, \
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config_get_set_seed, config_get_set_num_parallel_workers
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DATA_DIR = ["../data/dataset/test_tf_file_3_images/train-0000-of-0001.data"]
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SCHEMA_DIR = "../data/dataset/test_tf_file_3_images/datasetSchema.json"
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GENERATE_GOLDEN = False
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def test_random_rotation_op_c(plot=False):
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"""
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Test RandomRotation in c++ transformations op
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"""
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logger.info("test_random_rotation_op_c")
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# First dataset
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data1 = ds.TFRecordDataset(DATA_DIR, SCHEMA_DIR, shuffle=False)
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decode_op = c_vision.Decode()
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# use [90, 90] to force rotate 90 degrees, expand is set to be True to match output size
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random_rotation_op = c_vision.RandomRotation((90, 90), expand=True)
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data1 = data1.map(operations=decode_op, input_columns=["image"])
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data1 = data1.map(operations=random_rotation_op, input_columns=["image"])
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# Second dataset
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data2 = ds.TFRecordDataset(DATA_DIR, SCHEMA_DIR, columns_list=["image"], shuffle=False)
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data2 = data2.map(operations=decode_op, input_columns=["image"])
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num_iter = 0
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for item1, item2 in zip(data1.create_dict_iterator(num_epochs=1, output_numpy=True),
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data2.create_dict_iterator(num_epochs=1, output_numpy=True)):
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if num_iter > 0:
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break
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rotation_de = item1["image"]
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original = item2["image"]
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logger.info("shape before rotate: {}".format(original.shape))
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rotation_cv = cv2.rotate(original, cv2.ROTATE_90_COUNTERCLOCKWISE)
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mse = diff_mse(rotation_de, rotation_cv)
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logger.info("random_rotation_op_{}, mse: {}".format(num_iter + 1, mse))
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assert mse == 0
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num_iter += 1
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if plot:
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visualize_image(original, rotation_de, mse, rotation_cv)
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def test_random_rotation_op_py(plot=False):
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"""
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Test RandomRotation in python transformations op
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"""
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logger.info("test_random_rotation_op_py")
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# First dataset
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data1 = ds.TFRecordDataset(DATA_DIR, SCHEMA_DIR, shuffle=False)
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# use [90, 90] to force rotate 90 degrees, expand is set to be True to match output size
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transform1 = mindspore.dataset.transforms.py_transforms.Compose([py_vision.Decode(),
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py_vision.RandomRotation((90, 90), expand=True),
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py_vision.ToTensor()])
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data1 = data1.map(operations=transform1, input_columns=["image"])
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# Second dataset
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data2 = ds.TFRecordDataset(DATA_DIR, SCHEMA_DIR, columns_list=["image"], shuffle=False)
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transform2 = mindspore.dataset.transforms.py_transforms.Compose([py_vision.Decode(),
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py_vision.ToTensor()])
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data2 = data2.map(operations=transform2, input_columns=["image"])
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num_iter = 0
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for item1, item2 in zip(data1.create_dict_iterator(num_epochs=1, output_numpy=True),
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data2.create_dict_iterator(num_epochs=1, output_numpy=True)):
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if num_iter > 0:
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break
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rotation_de = (item1["image"].transpose(1, 2, 0) * 255).astype(np.uint8)
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original = (item2["image"].transpose(1, 2, 0) * 255).astype(np.uint8)
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logger.info("shape before rotate: {}".format(original.shape))
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rotation_cv = cv2.rotate(original, cv2.ROTATE_90_COUNTERCLOCKWISE)
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mse = diff_mse(rotation_de, rotation_cv)
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logger.info("random_rotation_op_{}, mse: {}".format(num_iter + 1, mse))
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assert mse == 0
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num_iter += 1
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if plot:
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visualize_image(original, rotation_de, mse, rotation_cv)
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def test_random_rotation_expand():
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"""
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Test RandomRotation op
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"""
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logger.info("test_random_rotation_op")
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# First dataset
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data1 = ds.TFRecordDataset(DATA_DIR, SCHEMA_DIR, columns_list=["image"], shuffle=False)
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decode_op = c_vision.Decode()
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# expand is set to be True to match output size
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random_rotation_op = c_vision.RandomRotation((0, 90), expand=True)
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data1 = data1.map(operations=decode_op, input_columns=["image"])
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data1 = data1.map(operations=random_rotation_op, input_columns=["image"])
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num_iter = 0
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for item in data1.create_dict_iterator(num_epochs=1):
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rotation = item["image"]
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logger.info("shape after rotate: {}".format(rotation.shape))
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num_iter += 1
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def test_random_rotation_md5():
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"""
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Test RandomRotation with md5 check
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"""
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logger.info("Test RandomRotation with md5 check")
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original_seed = config_get_set_seed(5)
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original_num_parallel_workers = config_get_set_num_parallel_workers(1)
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# Fisrt dataset
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data1 = ds.TFRecordDataset(DATA_DIR, SCHEMA_DIR, columns_list=["image"], shuffle=False)
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decode_op = c_vision.Decode()
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resize_op = c_vision.RandomRotation((0, 90),
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expand=True,
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resample=Inter.BILINEAR,
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center=(50, 50),
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fill_value=150)
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data1 = data1.map(operations=decode_op, input_columns=["image"])
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data1 = data1.map(operations=resize_op, input_columns=["image"])
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# Second dataset
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data2 = ds.TFRecordDataset(DATA_DIR, SCHEMA_DIR, shuffle=False)
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transform2 = mindspore.dataset.transforms.py_transforms.Compose([py_vision.Decode(),
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py_vision.RandomRotation((0, 90),
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expand=True,
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resample=Inter.BILINEAR,
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center=(50, 50),
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fill_value=150),
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py_vision.ToTensor()])
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data2 = data2.map(operations=transform2, input_columns=["image"])
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# Compare with expected md5 from images
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filename1 = "random_rotation_01_c_result.npz"
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save_and_check_md5(data1, filename1, generate_golden=GENERATE_GOLDEN)
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filename2 = "random_rotation_01_py_result.npz"
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save_and_check_md5(data2, filename2, generate_golden=GENERATE_GOLDEN)
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# Restore configuration
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ds.config.set_seed(original_seed)
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ds.config.set_num_parallel_workers(original_num_parallel_workers)
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def test_rotation_diff(plot=False):
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"""
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Test RandomRotation op
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"""
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logger.info("test_random_rotation_op")
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# First dataset
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data1 = ds.TFRecordDataset(DATA_DIR, SCHEMA_DIR, columns_list=["image"], shuffle=False)
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decode_op = c_vision.Decode()
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rotation_op = c_vision.RandomRotation((45, 45))
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ctrans = [decode_op,
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rotation_op
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]
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data1 = data1.map(operations=ctrans, input_columns=["image"])
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# Second dataset
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transforms = [
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py_vision.Decode(),
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py_vision.RandomRotation((45, 45)),
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py_vision.ToTensor(),
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]
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transform = mindspore.dataset.transforms.py_transforms.Compose(transforms)
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data2 = ds.TFRecordDataset(DATA_DIR, SCHEMA_DIR, columns_list=["image"], shuffle=False)
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data2 = data2.map(operations=transform, input_columns=["image"])
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num_iter = 0
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image_list_c, image_list_py = [], []
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for item1, item2 in zip(data1.create_dict_iterator(num_epochs=1, output_numpy=True),
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data2.create_dict_iterator(num_epochs=1, output_numpy=True)):
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num_iter += 1
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c_image = item1["image"]
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py_image = (item2["image"].transpose(1, 2, 0) * 255).astype(np.uint8)
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image_list_c.append(c_image)
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image_list_py.append(py_image)
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logger.info("shape of c_image: {}".format(c_image.shape))
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logger.info("shape of py_image: {}".format(py_image.shape))
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logger.info("dtype of c_image: {}".format(c_image.dtype))
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logger.info("dtype of py_image: {}".format(py_image.dtype))
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mse = diff_mse(c_image, py_image)
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assert mse < 0.001 # Rounding error
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if plot:
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visualize_list(image_list_c, image_list_py, visualize_mode=2)
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if __name__ == "__main__":
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test_random_rotation_op_c(plot=True)
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test_random_rotation_op_py(plot=True)
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test_random_rotation_expand()
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test_random_rotation_md5()
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test_rotation_diff(plot=True)
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