72 lines
1.9 KiB
Python
72 lines
1.9 KiB
Python
# Copyright 2020 Huawei Technologies Co., Ltd
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
# ==============================================================================
|
|
import numpy as np
|
|
|
|
import mindspore.dataset as ds
|
|
|
|
DATA_FILE = "../data/dataset/test_flat_map/images1.txt"
|
|
INDEX_FILE = "../data/dataset/test_flat_map/image_index.txt"
|
|
|
|
|
|
def test_flat_map_1():
|
|
'''
|
|
DATA_FILE records the path of image folders, load the images from them.
|
|
'''
|
|
|
|
def flat_map_func(x):
|
|
data_dir = x[0].item().decode('utf8')
|
|
d = ds.ImageFolderDataset(data_dir)
|
|
return d
|
|
|
|
data = ds.TextFileDataset(DATA_FILE)
|
|
data = data.flat_map(flat_map_func)
|
|
|
|
count = 0
|
|
for d in data:
|
|
assert isinstance(d[0], np.ndarray)
|
|
count += 1
|
|
assert count == 52
|
|
|
|
|
|
def test_flat_map_2():
|
|
'''
|
|
Flatten 3D structure data
|
|
'''
|
|
|
|
def flat_map_func_1(x):
|
|
data_dir = x[0].item().decode('utf8')
|
|
d = ds.ImageFolderDataset(data_dir)
|
|
return d
|
|
|
|
def flat_map_func_2(x):
|
|
text_file = x[0].item().decode('utf8')
|
|
d = ds.TextFileDataset(text_file)
|
|
d = d.flat_map(flat_map_func_1)
|
|
return d
|
|
|
|
data = ds.TextFileDataset(INDEX_FILE)
|
|
data = data.flat_map(flat_map_func_2)
|
|
|
|
count = 0
|
|
for d in data:
|
|
assert isinstance(d[0], np.ndarray)
|
|
count += 1
|
|
assert count == 104
|
|
|
|
|
|
if __name__ == "__main__":
|
|
test_flat_map_1()
|
|
test_flat_map_2()
|