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Paddle/python/paddle/fluid/tests/unittests/test_crop_op.py

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3.6 KiB

# Copyright (c) 2018 PaddlePaddle Authors. All Rights Reserved.
#
# 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.
from __future__ import print_function
import unittest
import numpy as np
from op_test import OpTest
def crop(data, offsets, crop_shape):
def indexOf(shape, index):
result = []
for dim in reversed(shape):
result.append(index % dim)
index = index / dim
return result[::-1]
result = []
for i, value in enumerate(data.flatten()):
index = indexOf(data.shape, i)
selected = True
if len(index) == len(offsets):
for j, offset in enumerate(offsets):
selected = selected and index[j] >= offset and index[
j] < crop_shape[j] + offset
if selected:
result.append(value)
return np.array(result).reshape(crop_shape)
class TestCropOp(OpTest):
def setUp(self):
self.op_type = "crop"
self.crop_by_input = False
self.offset_by_input = False
self.attrs = {}
self.initTestCase()
if self.crop_by_input:
self.inputs = {
'X': np.random.random(self.x_shape).astype("float32"),
'Y': np.random.random(self.crop_shape).astype("float32")
}
else:
self.attrs['shape'] = self.crop_shape
self.inputs = {
'X': np.random.random(self.x_shape).astype("float32"),
}
if self.offset_by_input:
self.inputs['Offsets'] = np.array(self.offsets).astype('int32')
else:
self.attrs['offsets'] = self.offsets
self.outputs = {
'Out': crop(self.inputs['X'], self.offsets, self.crop_shape)
}
def initTestCase(self):
self.x_shape = (8, 8)
self.crop_shape = (2, 2)
self.offsets = [1, 2]
def test_check_output(self):
self.check_output()
def test_check_grad_normal(self):
self.check_grad(['X'], 'Out', max_relative_error=0.006)
class TestCase1(TestCropOp):
def initTestCase(self):
self.x_shape = (16, 8, 32)
self.crop_shape = [2, 2, 3]
self.offsets = [1, 5, 3]
class TestCase2(TestCropOp):
def initTestCase(self):
self.x_shape = (4, 8)
self.crop_shape = [4, 8]
self.offsets = [0, 0]
class TestCase3(TestCropOp):
def initTestCase(self):
self.x_shape = (4, 8, 16)
self.crop_shape = [2, 2, 3]
self.offsets = [1, 5, 3]
self.crop_by_input = True
class TestCase4(TestCropOp):
def initTestCase(self):
self.x_shape = (4, 4)
self.crop_shape = [4, 4]
self.offsets = [0, 0]
self.crop_by_input = True
class TestCase5(TestCropOp):
def initTestCase(self):
self.x_shape = (3, 4, 5)
self.crop_shape = [2, 2, 3]
self.offsets = [1, 0, 2]
self.offset_by_input = True
class TestCase6(TestCropOp):
def initTestCase(self):
self.x_shape = (10, 9, 14)
self.crop_shape = [3, 3, 5]
self.offsets = [3, 5, 4]
self.crop_by_input = True
self.offset_by_input = True
if __name__ == '__main__':
unittest.main()