# Copyright (c) 2022 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. import unittest import numpy as np from op_test import OpTest import paddle import paddle.fluid as fluid import paddle.fluid.core as core import paddle.nn.functional as F def pixel_unshuffle_np(x, down_factor, data_format="NCHW"): '''Numpy implementation of pixel unshuffle''' if data_format == "NCHW": n, c, h, w = x.shape new_shape = ( n, c, h // down_factor, down_factor, w // down_factor, down_factor, ) npresult = np.reshape(x, new_shape) npresult = npresult.transpose(0, 1, 3, 5, 2, 4) oshape = [ n, c * down_factor * down_factor, h // down_factor, w // down_factor, ] npresult = np.reshape(npresult, oshape) return npresult else: n, h, w, c = x.shape new_shape = ( n, h // down_factor, down_factor, w // down_factor, down_factor, c, ) npresult = np.reshape(x, new_shape) npresult = npresult.transpose(0, 1, 3, 5, 2, 4) oshape = [ n, h // down_factor, w // down_factor, c * down_factor * down_factor, ] npresult = np.reshape(npresult, oshape) return npresult class TestPixelUnshuffleOp(OpTest): '''TestPixelUnshuffleOp''' def setUp(self): '''setUp''' self.op_type = "pixel_unshuffle" self.init_data_format() n, c, h, w = 2, 1, 12, 12 if self.format == "NCHW": shape = [n, c, h, w] if self.format == "NHWC": shape = [n, h, w, c] down_factor = 3 x = np.random.random(shape).astype("float64") npresult = pixel_unshuffle_np(x, down_factor, self.format) self.inputs = {"X": x} self.outputs = {"Out": npresult} self.attrs = { "downscale_factor": down_factor, "data_format": self.format, } def init_data_format(self): '''init_data_format''' self.format = "NCHW" def test_check_output(self): '''test_check_output''' self.check_output() def test_check_grad(self): '''test_check_grad''' self.check_grad(["X"], "Out") class TestChannelLast(TestPixelUnshuffleOp): '''TestChannelLast''' def init_data_format(self): '''init_data_format''' self.format = "NHWC" class TestPixelUnshuffleAPI(unittest.TestCase): '''TestPixelUnshuffleAPI''' def setUp(self): '''setUp''' self.x_1_np = np.random.random([2, 1, 12, 12]).astype("float64") self.x_2_np = np.random.random([2, 12, 12, 1]).astype("float64") self.out_1_np = pixel_unshuffle_np(self.x_1_np, 3) self.out_2_np = pixel_unshuffle_np(self.x_2_np, 3, "NHWC") def test_static_graph_functional(self): '''test_static_graph_functional''' for use_cuda in ( [False, True] if core.is_compiled_with_cuda() else [False] ): place = paddle.CUDAPlace(0) if use_cuda else paddle.CPUPlace() paddle.enable_static() x_1 = paddle.static.data( name="x", shape=[2, 1, 12, 12], dtype="float64" ) x_2 = paddle.static.data( name="x2", shape=[2, 12, 12, 1], dtype="float64" ) out_1 = F.pixel_unshuffle(x_1, 3) out_2 = F.pixel_unshuffle(x_2, 3, "NHWC") exe = paddle.static.Executor(place=place) res_1 = exe.run( fluid.default_main_program(), feed={"x": self.x_1_np}, fetch_list=out_1, use_prune=True, ) res_2 = exe.run( fluid.default_main_program(), feed={"x2": self.x_2_np}, fetch_list=out_2, use_prune=True, ) assert np.allclose(res_1, self.out_1_np) assert np.allclose(res_2, self.out_2_np) # same test between layer and functional in this op. def test_static_graph_layer(self): '''test_static_graph_layer''' for use_cuda in ( [False, True] if core.is_compiled_with_cuda() else [False] ): place = paddle.CUDAPlace(0) if use_cuda else paddle.CPUPlace() paddle.enable_static() x_1 = paddle.static.data( name="x", shape=[2, 1, 12, 12], dtype="float64" ) x_2 = paddle.static.data( name="x2", shape=[2, 12, 12, 1], dtype="float64" ) # init instance ps_1 = paddle.nn.PixelUnshuffle(3) ps_2 = paddle.nn.PixelUnshuffle(3, "NHWC") out_1 = ps_1(x_1) out_2 = ps_2(x_2) out_1_np = pixel_unshuffle_np(self.x_1_np, 3) out_2_np = pixel_unshuffle_np(self.x_2_np, 3, "NHWC") exe = paddle.static.Executor(place=place) res_1 = exe.run( fluid.default_main_program(), feed={"x": self.x_1_np}, fetch_list=out_1, use_prune=True, ) res_2 = exe.run( fluid.default_main_program(), feed={"x2": self.x_2_np}, fetch_list=out_2, use_prune=True, ) assert np.allclose(res_1, out_1_np) assert np.allclose(res_2, out_2_np) def run_dygraph(self, down_factor, data_format): '''run_dygraph''' n, c, h, w = 2, 1, 12, 12 if data_format == "NCHW": shape = [n, c, h, w] if data_format == "NHWC": shape = [n, h, w, c] x = np.random.random(shape).astype("float64") npresult = pixel_unshuffle_np(x, down_factor, data_format) for use_cuda in ( [False, True] if core.is_compiled_with_cuda() else [False] ): place = paddle.CUDAPlace(0) if use_cuda else paddle.CPUPlace() paddle.disable_static(place=place) pixel_unshuffle = paddle.nn.PixelUnshuffle( down_factor, data_format=data_format ) result = pixel_unshuffle(paddle.to_tensor(x)) np.testing.assert_allclose(result.numpy(), npresult, rtol=1e-05) result_functional = F.pixel_unshuffle( paddle.to_tensor(x), 3, data_format ) np.testing.assert_allclose( result_functional.numpy(), npresult, rtol=1e-05 ) pixel_unshuffle_str = 'downscale_factor={}'.format(down_factor) if data_format != 'NCHW': pixel_unshuffle_str += ', data_format={}'.format(data_format) self.assertEqual(pixel_unshuffle.extra_repr(), pixel_unshuffle_str) def test_dygraph1(self): '''test_dygraph1''' self.run_dygraph(3, "NCHW") def test_dygraph2(self): '''test_dygraph2''' self.run_dygraph(3, "NHWC") class TestPixelUnshuffleError(unittest.TestCase): '''TestPixelUnshuffleError''' def test_error_functional(self): '''test_error_functional''' def error_input(): with paddle.fluid.dygraph.guard(): x = np.random.random([4, 12, 12]).astype("float64") pixel_unshuffle = F.pixel_unshuffle(paddle.to_tensor(x), 2) self.assertRaises(ValueError, error_input) def error_downscale_factor_1(): with paddle.fluid.dygraph.guard(): x = np.random.random([2, 1, 12, 12]).astype("float64") pixel_unshuffle = F.pixel_unshuffle(paddle.to_tensor(x), 3.33) self.assertRaises(TypeError, error_downscale_factor_1) def error_downscale_factor_2(): with paddle.fluid.dygraph.guard(): x = np.random.random([2, 1, 12, 12]).astype("float64") pixel_unshuffle = F.pixel_unshuffle(paddle.to_tensor(x), -1) self.assertRaises(ValueError, error_downscale_factor_2) def error_data_format(): with paddle.fluid.dygraph.guard(): x = np.random.random([2, 1, 12, 12]).astype("float64") pixel_unshuffle = F.pixel_unshuffle( paddle.to_tensor(x), 3, "WOW" ) self.assertRaises(ValueError, error_data_format) def test_error_layer(self): '''test_error_layer''' def error_input_layer(): with paddle.fluid.dygraph.guard(): x = np.random.random([4, 12, 12]).astype("float64") ps = paddle.nn.PixelUnshuffle(2) ps(paddle.to_tensor(x)) self.assertRaises(ValueError, error_input_layer) def error_downscale_factor_layer_1(): with paddle.fluid.dygraph.guard(): x = np.random.random([2, 1, 12, 12]).astype("float64") ps = paddle.nn.PixelUnshuffle(3.33) self.assertRaises(TypeError, error_downscale_factor_layer_1) def error_downscale_factor_layer_2(): with paddle.fluid.dygraph.guard(): x = np.random.random([2, 1, 12, 12]).astype("float64") ps = paddle.nn.PixelUnshuffle(-1) self.assertRaises(ValueError, error_downscale_factor_layer_2) def error_data_format_layer(): with paddle.fluid.dygraph.guard(): x = np.random.random([2, 1, 12, 12]).astype("float64") ps = paddle.nn.PixelUnshuffle(3, "MEOW") self.assertRaises(ValueError, error_data_format_layer) if __name__ == "__main__": unittest.main()