forked from mindspore-Ecosystem/mindspore
544 lines
21 KiB
Python
544 lines
21 KiB
Python
# Copyright 2019-2022 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 Normalize op in DE
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"""
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import numpy as np
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from PIL import Image
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import mindspore.dataset as ds
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import mindspore.dataset.transforms
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import mindspore.dataset.vision as vision
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from mindspore import log as logger
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from util import diff_mse, save_and_check_md5, save_and_check_md5_pil, visualize_image
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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 normalize_np(image, mean, std):
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"""
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Apply the Normalization
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"""
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# DE decodes the image in RGB by default, hence
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# the values here are in RGB
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image = np.array(image, np.float32)
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image = image - np.array(mean)
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image = image * (1.0 / np.array(std))
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return image
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def util_test_normalize(mean, std, add_to_pil):
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"""
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Utility function for testing Normalize. Input arguments are given by other tests
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"""
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if not add_to_pil:
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# define map operations
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decode_op = vision.Decode()
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normalize_op = vision.Normalize(mean, std, True)
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# Generate dataset
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data = ds.TFRecordDataset(DATA_DIR, SCHEMA_DIR, columns_list=["image"], shuffle=False)
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data = data.map(operations=decode_op, input_columns=["image"])
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data = data.map(operations=normalize_op, input_columns=["image"])
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else:
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# define map operations
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transforms = [
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vision.Decode(True),
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vision.ToTensor(),
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vision.Normalize(mean, std, False)
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]
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transform = mindspore.dataset.transforms.Compose(transforms)
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# Generate dataset
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data = ds.TFRecordDataset(DATA_DIR, SCHEMA_DIR, columns_list=["image"], shuffle=False)
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data = data.map(operations=transform, input_columns=["image"])
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return data
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def util_test_normalize_grayscale(num_output_channels, mean, std):
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"""
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Utility function for testing Normalize. Input arguments are given by other tests
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"""
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transforms = [
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vision.Decode(True),
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vision.Grayscale(num_output_channels),
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vision.ToTensor(),
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vision.Normalize(mean, std, False)
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]
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transform = mindspore.dataset.transforms.Compose(transforms)
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# Generate dataset
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data = ds.TFRecordDataset(DATA_DIR, SCHEMA_DIR, columns_list=["image"], shuffle=False)
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data = data.map(operations=transform, input_columns=["image"])
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return data
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def test_normalize_op_hwc(plot=False):
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"""
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Feature: Normalize op
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Description: Test Normalize with Decode versus NumPy comparison
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Expectation: Test succeeds. MSE difference is negligible.
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"""
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logger.info("Test Normalize in with hwc")
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mean = [121.0, 115.0, 100.0]
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std = [70.0, 68.0, 71.0]
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# define map operations
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decode_op = vision.Decode()
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normalize_op = vision.Normalize(mean, std, True)
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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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data1 = data1.map(operations=decode_op, input_columns=["image"])
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data1 = data1.map(operations=normalize_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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image_de_normalized = item1["image"]
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image_original = item2["image"]
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image_np_normalized = normalize_np(image_original, mean, std)
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np.testing.assert_almost_equal(image_de_normalized, image_np_normalized, 2)
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mse = diff_mse(image_de_normalized, image_np_normalized)
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logger.info("image_{}, mse: {}".format(num_iter + 1, mse))
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if plot:
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visualize_image(image_original, image_de_normalized, mse, image_np_normalized)
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num_iter += 1
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def test_normalize_op_chw(plot=False):
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"""
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Feature: Normalize op
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Description: Test Normalize with CHW input, Decode(to_pil=True) & ToTensor versus NumPy comparison
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Expectation: Test succeeds. MSE difference is negligible.
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"""
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logger.info("Test Normalize with chw")
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mean = [0.475, 0.45, 0.392]
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std = [0.275, 0.267, 0.278]
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# define map operations
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transforms = [
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vision.Decode(True),
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vision.ToTensor()
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]
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transform = mindspore.dataset.transforms.Compose(transforms)
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normalize_op = vision.Normalize(mean, std, False)
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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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data1 = data1.map(operations=transform, input_columns=["image"])
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data1 = data1.map(operations=normalize_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=transform, 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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image_de_normalized = (item1["image"].transpose(1, 2, 0) * 255).astype(np.uint8)
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image_np_normalized = (normalize_np(item2["image"].transpose(1, 2, 0), mean, std) * 255).astype(np.uint8)
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mse = diff_mse(image_de_normalized, image_np_normalized)
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logger.info("image_{}, mse: {}".format(num_iter + 1, mse))
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assert mse < 0.01
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if plot:
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image_original = (item2["image"].transpose(1, 2, 0) * 255).astype(np.uint8)
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visualize_image(image_original, image_de_normalized, mse, image_np_normalized)
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num_iter += 1
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def test_normalize_op_video():
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"""
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Feature: Normalize op
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Description: Test NormalizeOp in Cpp transformation with 4 dimension input,
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where the input tensor is (..., T, H, W, C)
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Expectation: The dataset is processed successfully
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"""
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logger.info("Test NormalizeOp in cpp transformations with 4 dimension input")
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mean = [121.0, 115.0, 100.0]
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std = [70.0, 68.0, 71.0]
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input_np_original = np.array([[87, 88, 232, 239],
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[11, 229, 22, 79],
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[250, 20, 173, 213]], dtype=np.float32)
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expect_output = np.array([[-1.0714285, -1.3088236, 0.11267605, 1.7142857],
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[-0.35211268, -0.55714285, 1.0735294, 0.52112675],
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[-0.27941176, 0.43661973, 1.3428571, -0.9411765]], dtype=np.float32)
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shape = (2, 2, 1, 3)
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input_np_original = input_np_original.reshape(shape)
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expect_output = expect_output.reshape(shape)
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# define operations
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normalize_op = vision.Normalize(mean, std, True)
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# doing the Normalization
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vidio_de_normalized = normalize_op(input_np_original)
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mse = diff_mse(vidio_de_normalized, expect_output)
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assert mse < 0.01
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def test_normalize_op_5d():
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"""
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Feature: Normalize op
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Description: Test NormalizeOp in Cpp transformation with 5 dim input, where the input tensor is (..., T, H, W, C)
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Expectation: The dataset is processed successfully
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"""
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logger.info("Test NormalizeOp in cpp transformations with 5 dimension input")
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mean = [121.0, 115.0, 100.0]
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std = [70.0, 68.0, 71.0]
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input_np_original = np.array([[87, 88, 232, 239],
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[11, 229, 22, 79],
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[250, 20, 173, 213]], dtype=np.float32)
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expect_output = np.array([[-1.0714285, -1.3088236, 0.11267605, 1.7142857],
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[-0.35211268, -0.55714285, 1.0735294, 0.52112675],
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[-0.27941176, 0.43661973, 1.3428571, -0.9411765]], dtype=np.float32)
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shape = (2, 1, 2, 1, 3)
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input_np_original = input_np_original.reshape(shape)
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expect_output = expect_output.reshape(shape)
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# define operations
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normalize_op = vision.Normalize(mean, std, True)
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# doing the Normalization
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vidio_de_normalized = normalize_op(input_np_original)
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mse = diff_mse(vidio_de_normalized, expect_output)
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assert mse < 0.01
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def test_decode_op():
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"""
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Feature: Decode op
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Description: Test Decode op basic usage
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Expectation: Dataset pipeline runs successfully and results are verified
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"""
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logger.info("Test Decode")
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data1 = ds.TFRecordDataset(DATA_DIR, SCHEMA_DIR, columns_list=["image", "label"], num_parallel_workers=1,
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shuffle=False)
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# define map operations
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decode_op = vision.Decode()
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# apply map operations on images
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data1 = data1.map(operations=decode_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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logger.info("Looping inside iterator {}".format(num_iter))
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_ = item["image"]
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num_iter += 1
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def test_decode_normalize_op():
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"""
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Feature: Decode op and Normalize op
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Description: Test Decode op followed by Normalize op in one map
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Expectation: Dataset pipeline runs successfully and results are verified
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"""
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logger.info("Test [Decode, Normalize] in one Map")
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data1 = ds.TFRecordDataset(DATA_DIR, SCHEMA_DIR, columns_list=["image", "label"], num_parallel_workers=1,
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shuffle=False)
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# define map operations
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decode_op = vision.Decode()
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normalize_op = vision.Normalize([121.0, 115.0, 100.0], [70.0, 68.0, 71.0], True)
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# apply map operations on images
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data1 = data1.map(operations=[decode_op, normalize_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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logger.info("Looping inside iterator {}".format(num_iter))
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_ = item["image"]
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num_iter += 1
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def test_normalize_md5_01():
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"""
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Feature: Normalize Op
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Description: Test Normalize op with md5 check with valid mean and std
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Expectation: Passes the md5 check test
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"""
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logger.info("test_normalize_md5_01")
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data_c = util_test_normalize([121.0, 115.0, 100.0], [70.0, 68.0, 71.0], False)
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data_py = util_test_normalize([0.475, 0.45, 0.392], [0.275, 0.267, 0.278], True)
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# check results with md5 comparison
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filename1 = "normalize_01_c_result.npz"
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filename2 = "normalize_01_to_pil_result.npz"
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save_and_check_md5(data_c, filename1, generate_golden=GENERATE_GOLDEN)
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save_and_check_md5_pil(data_py, filename2, generate_golden=GENERATE_GOLDEN)
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def test_normalize_md5_02():
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"""
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Feature: Normalize Op
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Description: Test Normalize op with md5 check with len(mean)=len(std)=1 with RBG images
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Expectation: Passes the md5 check test
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"""
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logger.info("test_normalize_md5_02")
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data_py = util_test_normalize([0.475], [0.275], True)
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# check results with md5 comparison
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filename2 = "normalize_02_to_pil_result.npz"
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save_and_check_md5_pil(data_py, filename2, generate_golden=GENERATE_GOLDEN)
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def test_normalize_exception_unequal_size_1():
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"""
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Feature: Normalize op
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Description: Test Normalize with error input: len(mean) != len(std)
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Expectation: ValueError raised
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"""
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logger.info("test_normalize_exception_unequal_size_1")
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try:
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_ = vision.Normalize([100, 250, 125], [50, 50, 75, 75])
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except ValueError as e:
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logger.info("Got an exception in DE: {}".format(str(e)))
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assert str(e) == "Length of mean and std must be equal."
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def test_normalize_exception_out_of_range():
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"""
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Feature: Normalize op
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Description: Test Normalize with error input: mean, std out of range
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Expectation: ValueError raised
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"""
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logger.info("test_normalize_exception_out_of_range")
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try:
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_ = vision.Normalize([256, 250, 125], [50, 75, 75])
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except ValueError as e:
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logger.info("Got an exception in DE: {}".format(str(e)))
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assert "not within the required interval" in str(e)
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try:
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_ = vision.Normalize([255, 250, 125], [0, 75, 75])
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except ValueError as e:
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logger.info("Got an exception in DE: {}".format(str(e)))
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assert "not within the required interval" in str(e)
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def test_normalize_exception_unequal_size_2():
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"""
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Feature: Normalize op
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Description: Test Normalize with error input: len(mean) != len(std)
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Expectation: ValueError raised
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"""
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logger.info("test_normalize_exception_unequal_size_2")
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try:
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_ = vision.Normalize([0.50, 0.30, 0.75], [0.18, 0.32, 0.71, 0.72], False)
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except ValueError as e:
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logger.info("Got an exception in DE: {}".format(str(e)))
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assert str(e) == "Length of mean and std must be equal."
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def test_normalize_exception_invalid_size():
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"""
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Feature: Normalize op
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Description: Test Normalize with error input: len(mean)=len(std)=2
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Expectation: RuntimeError raised
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"""
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logger.info("test_normalize_exception_invalid_size")
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data = util_test_normalize([0.75, 0.25], [0.18, 0.32], False)
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try:
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_ = data.create_dict_iterator(num_epochs=1).__next__()
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except RuntimeError as e:
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logger.info("Got an exception in DE: {}".format(str(e)))
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assert "Normalize: number of channels does not match the size of mean and std vectors" in str(e)
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def test_normalize_exception_invalid_range():
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"""
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Feature: Normalize op
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Description: Test Normalize with error input: value is not in range [0,1]
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Expectation: ValueError raised
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"""
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logger.info("test_normalize_exception_invalid_range")
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try:
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_ = vision.Normalize([0.75, 1.25, 0.5], [0.1, 0.18, 1.32], False)
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except ValueError as e:
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logger.info("Got an exception in DE: {}".format(str(e)))
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assert "Input mean_value is not within the required interval of [0.0, 1.0]." in str(e)
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def test_normalize_grayscale_md5_01():
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"""
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Feature: Normalize Op
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Description: Test Normalize op with md5 check with len(mean)=len(std)=1 with 1 channel grayscale images
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Expectation: Passes the md5 check test
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"""
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logger.info("test_normalize_grayscale_md5_01")
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data = util_test_normalize_grayscale(1, [0.5], [0.175])
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# check results with md5 comparison
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filename = "normalize_03_to_pil_result.npz"
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save_and_check_md5_pil(data, filename, generate_golden=GENERATE_GOLDEN)
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def test_normalize_grayscale_md5_02():
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"""
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Feature: Normalize Op
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Description: Test Normalize op with md5 check with len(mean)=len(std)=3 with 3 channels grayscale images
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Expectation: Passes the md5 check test
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"""
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logger.info("test_normalize_grayscale_md5_02")
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data = util_test_normalize_grayscale(3, [0.5, 0.5, 0.5], [0.175, 0.235, 0.512])
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# check results with md5 comparison
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filename = "normalize_04_to_pil_result.npz"
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save_and_check_md5_pil(data, filename, generate_golden=GENERATE_GOLDEN)
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def test_normalize_grayscale_exception():
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"""
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Feature: Normalize Op
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Description: Test Normalize op with md5 check with len(mean)=len(std)=3 with 1 channel grayscale images
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Expectation: Error is raised as expected
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"""
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logger.info("test_normalize_grayscale_exception")
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try:
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_ = util_test_normalize_grayscale(1, [0.5, 0.5, 0.5], [0.175, 0.235, 0.512])
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except RuntimeError as e:
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logger.info("Got an exception in DE: {}".format(str(e)))
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assert "Input is not within the required range" in str(e)
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def test_multiple_channels():
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"""
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Feature: Normalize Op
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Description: Test Normalize op with multiple channels
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Expectation: Output is equal to the expected output
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"""
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logger.info("test_multiple_channels")
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def util_test(item, mean, std):
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data = ds.NumpySlicesDataset([item], shuffle=False)
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data = data.map(vision.Normalize(mean, std, True))
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for d in data.create_tuple_iterator(num_epochs=1, output_numpy=True):
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actual = d[0]
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mean = np.array(mean, dtype=item.dtype)
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std = np.array(std, dtype=item.dtype)
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expected = item
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if len(item.shape) != 1 and len(mean) == 1:
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mean = [mean[0]] * expected.shape[-1]
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std = [std[0]] * expected.shape[-1]
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if len(item.shape) == 2:
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expected = np.expand_dims(expected, 2)
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for c in range(expected.shape[-1]):
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expected[:, :, c] = (expected[:, :, c] - mean[c]) / std[c]
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expected = expected.squeeze()
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np.testing.assert_almost_equal(actual, expected, decimal=6)
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util_test(np.ones(shape=[2, 2, 3]), mean=[0.5, 0.6, 0.7], std=[0.1, 0.2, 0.3])
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util_test(np.ones(shape=[20, 45, 3]) * 1.3, mean=[0.5, 0.6, 0.7], std=[0.1, 0.2, 0.3])
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util_test(np.ones(shape=[20, 45, 4]) * 1.3, mean=[0.5, 0.6, 0.7, 0.8], std=[0.1, 0.2, 0.3, 0.4])
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util_test(np.ones(shape=[2, 2]), mean=[0.5], std=[0.1])
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util_test(np.ones(shape=[2, 2, 5]), mean=[0.5], std=[0.1])
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util_test(np.ones(shape=[6, 6, 129]), mean=[0.5] * 129, std=[0.1] * 129)
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util_test(np.ones(shape=[6, 6, 129]), mean=[0.5], std=[0.1])
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|
|
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def test_normalize_eager_hwc():
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"""
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Feature: Normalize op
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|
Description: Test eager support for Normalize Cpp implementation with HWC input
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Expectation: Receive non-None output image from op
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|
"""
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img_in = Image.open("../data/dataset/apple.jpg").convert("RGB")
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mean_vec = [1, 100, 255]
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std_vec = [1, 20, 255]
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normalize_op = vision.Normalize(mean=mean_vec, std=std_vec)
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img_out = normalize_op(img_in)
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assert img_out is not None
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|
|
|
|
|
def test_normalize_eager_chw():
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|
"""
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|
Feature: Normalize op
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|
Description: Test eager support for Normalize Cpp implementation with CHW input
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|
Expectation: Receive non-None output image from op
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|
"""
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|
img_in = Image.open("../data/dataset/apple.jpg").convert("RGB")
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|
img_in = vision.ToTensor()(img_in)
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mean_vec = [0.1, 0.5, 1.0]
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|
std_vec = [0.1, 0.4, 1.0]
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normalize_op = vision.Normalize(mean=mean_vec, std=std_vec, is_hwc=False)
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|
img_out = normalize_op(img_in)
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|
assert img_out is not None
|
|
|
|
|
|
def test_normalize_op_comp_chw():
|
|
"""
|
|
Feature: Normalize op
|
|
Description: Test Normalize with CHW input, Decode(to_pil=True) & ToTensor versus Decode(to_pil=False) & HWC2CHW
|
|
comparison.
|
|
Expectation: Test succeeds. MSE difference is negligible.
|
|
"""
|
|
logger.info("Test Normalize with CHW input")
|
|
mean = [0.475, 0.45, 0.392]
|
|
std = [0.275, 0.267, 0.278]
|
|
# define map operations
|
|
transforms = [
|
|
vision.Decode(True),
|
|
vision.ToTensor()
|
|
]
|
|
transform = mindspore.dataset.transforms.Compose(transforms)
|
|
normalize_op = vision.Normalize(mean, std, False)
|
|
|
|
# First dataset
|
|
data1 = ds.TFRecordDataset(DATA_DIR, SCHEMA_DIR, columns_list=["image"], shuffle=False)
|
|
data1 = data1.map(operations=transform, input_columns=["image"])
|
|
data1 = data1.map(operations=normalize_op, input_columns=["image"])
|
|
|
|
# Second dataset
|
|
data2 = ds.TFRecordDataset(DATA_DIR, SCHEMA_DIR, columns_list=["image"], shuffle=False)
|
|
data2 = data2.map(operations=vision.Decode(), input_columns=["image"])
|
|
data2 = data2.map(operations=vision.HWC2CHW(), input_columns=["image"])
|
|
data2 = data2.map(operations=vision.Normalize(mean, std, False), input_columns=["image"])
|
|
|
|
num_iter = 0
|
|
for item1, item2 in zip(data1.create_dict_iterator(num_epochs=1, output_numpy=True),
|
|
data2.create_dict_iterator(num_epochs=1, output_numpy=True)):
|
|
image_de_normalized = item1["image"]
|
|
image_np_normalized = item2["image"] / 255
|
|
mse = diff_mse(image_de_normalized, image_np_normalized)
|
|
logger.info("image_{}, mse: {}".format(num_iter + 1, mse))
|
|
assert mse < 0.01
|
|
num_iter += 1
|
|
|
|
|
|
if __name__ == "__main__":
|
|
test_decode_op()
|
|
test_decode_normalize_op()
|
|
test_normalize_op_hwc(plot=True)
|
|
test_normalize_op_chw(plot=True)
|
|
test_normalize_op_video()
|
|
test_normalize_op_5d()
|
|
test_normalize_md5_01()
|
|
test_normalize_md5_02()
|
|
test_normalize_exception_unequal_size_1()
|
|
test_normalize_exception_out_of_range()
|
|
test_normalize_exception_unequal_size_2()
|
|
test_normalize_exception_invalid_size()
|
|
test_normalize_exception_invalid_range()
|
|
test_normalize_grayscale_md5_01()
|
|
test_normalize_grayscale_md5_02()
|
|
test_normalize_grayscale_exception()
|
|
test_multiple_channels()
|
|
test_normalize_eager_hwc()
|
|
test_normalize_eager_chw()
|
|
test_normalize_op_comp_chw()
|