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228 lines
8.8 KiB
Python
228 lines
8.8 KiB
Python
# LICENSE HEADER MANAGED BY add-license-header
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#
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# Copyright 2018 Kornia Team
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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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import pytest
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import torch
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import kornia
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from testing.base import BaseTester
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class TestRandomPerspective(BaseTester):
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torch.manual_seed(0) # for random reproductibility
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def test_smoke_no_transform_float(self, device):
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x_data = torch.rand(1, 2, 8, 9).to(device)
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aug = kornia.augmentation.RandomPerspective(0.5, p=0.5)
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out_perspective = aug(x_data)
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assert out_perspective.shape == x_data.shape
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assert aug.inverse(out_perspective).shape == x_data.shape
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def test_smoke_no_transform(self, device, dtype):
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x_data = torch.rand(1, 2, 8, 9, dtype=dtype).to(device)
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aug = kornia.augmentation.RandomPerspective(torch.tensor(0.5, device=device, dtype=dtype), p=0.5)
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out_perspective = aug(x_data)
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assert out_perspective.shape == x_data.shape
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assert aug.inverse(out_perspective).shape == x_data.shape
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def test_smoke_no_transform_batch(self, device, dtype):
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x_data = torch.rand(2, 2, 8, 9, dtype=dtype).to(device)
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aug = kornia.augmentation.RandomPerspective(torch.tensor(0.5, device=device, dtype=dtype), p=0.5)
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out_perspective = aug(x_data)
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assert out_perspective.shape == x_data.shape
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assert aug.inverse(out_perspective).shape == x_data.shape
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def test_smoke_transform(self, device, dtype):
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x_data = torch.rand(1, 2, 4, 5, dtype=dtype).to(device)
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aug = kornia.augmentation.RandomPerspective(torch.tensor(0.5, device=device, dtype=dtype), p=0.5)
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out_perspective = aug(x_data)
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assert out_perspective.shape == x_data.shape
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assert aug.transform_matrix.shape == torch.Size([1, 3, 3])
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assert aug.inverse(out_perspective).shape == x_data.shape
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def test_smoke_transform_sampling_method(self, device, dtype):
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x_data = torch.rand(1, 2, 4, 5, dtype=dtype).to(device)
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aug = kornia.augmentation.RandomPerspective(
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torch.tensor(0.5, device=device, dtype=dtype), p=0.5, sampling_method="area_preserving"
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)
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out_perspective = aug(x_data)
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assert out_perspective.shape == x_data.shape
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assert aug.transform_matrix.shape == torch.Size([1, 3, 3])
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assert aug.inverse(out_perspective).shape == x_data.shape
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def test_no_transform_module(self, device, dtype):
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x_data = torch.rand(1, 2, 8, 9, dtype=dtype).to(device)
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aug = kornia.augmentation.RandomPerspective(torch.tensor(0.5, device=device, dtype=dtype))
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out_perspective = aug(x_data)
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assert out_perspective.shape == x_data.shape
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assert aug.inverse(out_perspective).shape == x_data.shape
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def test_transform_module_should_return_identity(self, device, dtype):
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torch.manual_seed(0)
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x_data = torch.rand(1, 2, 4, 5, dtype=dtype).to(device)
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aug = kornia.augmentation.RandomPerspective(torch.tensor(0.5, device=device, dtype=dtype), p=0.0)
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out_perspective = aug(x_data)
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assert out_perspective.shape == x_data.shape
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assert aug.transform_matrix.shape == (1, 3, 3)
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self.assert_close(out_perspective, x_data)
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self.assert_close(aug.transform_matrix, torch.eye(3, device=device, dtype=dtype)[None])
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assert aug.inverse(out_perspective).shape == x_data.shape
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def test_transform_module_should_return_expected_transform(self, device, dtype):
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torch.manual_seed(0)
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x_data = torch.rand(1, 2, 4, 5).to(device).type(dtype)
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expected_output = torch.tensor(
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[
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[
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[
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[0.0000, 0.0000, 0.0000, 0.0197, 0.0429],
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[0.0000, 0.5632, 0.5322, 0.3677, 0.1430],
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[0.0000, 0.3083, 0.4032, 0.1761, 0.0000],
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[0.0000, 0.0000, 0.0000, 0.0000, 0.0000],
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],
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[
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[0.0000, 0.0000, 0.0000, 0.1189, 0.0586],
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[0.0000, 0.7087, 0.5420, 0.3995, 0.0863],
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[0.0000, 0.2695, 0.5981, 0.5888, 0.0000],
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[0.0000, 0.0000, 0.0000, 0.0000, 0.0000],
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],
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]
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],
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device=device,
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dtype=x_data.dtype,
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)
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expected_transform = torch.tensor(
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[[[1.0523, 0.3493, 0.3046], [-0.1066, 1.0426, 0.5846], [0.0351, 0.1213, 1.0000]]],
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device=device,
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dtype=x_data.dtype,
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)
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aug = kornia.augmentation.RandomPerspective(
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torch.tensor(0.5, device=device, dtype=dtype), p=0.99999999
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) # step one the random state
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out_perspective = aug(x_data)
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assert out_perspective.shape == x_data.shape
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assert aug.transform_matrix.shape == (1, 3, 3)
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self.assert_close(out_perspective, expected_output, atol=1e-4, rtol=1e-4)
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self.assert_close(aug.transform_matrix, expected_transform, atol=1e-4, rtol=1e-4)
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assert aug.inverse(out_perspective).shape == x_data.shape
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def test_gradcheck(self, device, dtype):
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input = torch.rand(1, 2, 5, 7, dtype=torch.float64, device=device)
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# TODO: turned off with p=0
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self.gradcheck(
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kornia.augmentation.RandomPerspective(torch.tensor(0.5, device=device, dtype=dtype), p=0.0),
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(input,),
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)
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class TestRandomAffine(BaseTester):
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torch.manual_seed(0) # for random reproductibility
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def test_smoke_no_transform(self, device):
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x_data = torch.rand(1, 2, 8, 9).to(device)
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aug = kornia.augmentation.RandomAffine(0.0)
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out = aug(x_data)
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assert out.shape == x_data.shape
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assert aug.inverse(out).shape == x_data.shape
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assert aug.inverse(out, aug._params).shape == x_data.shape
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def test_smoke_no_transform_batch(self, device):
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x_data = torch.rand(2, 2, 8, 9).to(device)
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aug = kornia.augmentation.RandomAffine(0.0)
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out = aug(x_data)
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assert out.shape == x_data.shape
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# assert False, (aug.transform_matrix.shape, out.shape, aug._params)
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assert aug.inverse(out).shape == x_data.shape
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assert aug.inverse(out, aug._params).shape == x_data.shape
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@pytest.mark.parametrize("degrees", [45.0, (-45.0, 45.0), torch.tensor([45.0, 45.0])])
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@pytest.mark.parametrize("translate", [(0.1, 0.1), torch.tensor([0.1, 0.1])])
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@pytest.mark.parametrize(
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"scale", [(0.8, 1.2), (0.8, 1.2, 0.9, 1.1), torch.tensor([0.8, 1.2]), torch.tensor([0.8, 1.2, 0.7, 1.3])]
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)
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@pytest.mark.parametrize(
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"shear",
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[
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5.0,
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(-5.0, 5.0),
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(-5.0, 5.0, -3.0, 3.0),
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torch.tensor(5.0),
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torch.tensor([-5.0, 5.0]),
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torch.tensor([-5.0, 5.0, -3.0, 3.0]),
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],
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)
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def test_batch_multi_params(self, degrees, translate, scale, shear, device, dtype):
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x_data = torch.rand(2, 2, 8, 9).to(device)
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aug = kornia.augmentation.RandomAffine(degrees=degrees, translate=translate, scale=scale, shear=shear)
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out = aug(x_data)
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assert out.shape == x_data.shape
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assert aug.inverse(out).shape == x_data.shape
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def test_smoke_transform(self, device):
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x_data = torch.rand(1, 2, 4, 5).to(device)
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aug = kornia.augmentation.RandomAffine(0.0)
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out = aug(x_data)
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assert out.shape == x_data.shape
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assert aug.transform_matrix.shape == torch.Size([1, 3, 3])
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assert aug.inverse(out).shape == x_data.shape
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def test_gradcheck(self, device):
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input = torch.rand(1, 2, 5, 7, device=device, dtype=torch.float64)
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# TODO: turned off with p=0
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self.gradcheck(kornia.augmentation.RandomAffine(10, p=0.0), (input,))
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class TestRandomShear(BaseTester):
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torch.manual_seed(0) # for random reproductibility
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def test_smoke_no_transform(self, device):
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x_data = torch.rand(1, 2, 8, 9).to(device)
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aug = kornia.augmentation.RandomShear((10.0, 10.0))
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out = aug(x_data)
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assert out.shape == x_data.shape
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assert aug.inverse(out).shape == x_data.shape
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assert aug.inverse(out, aug._params).shape == x_data.shape
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def test_gradcheck(self, device):
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input = torch.rand(1, 2, 5, 7, device=device, dtype=torch.float64)
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# TODO: turned off with p=0
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self.gradcheck(kornia.augmentation.RandomShear((10.0, 10.0), p=1.0), (input,))
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