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class TestReproducibility(unittest.TestCase): def _test_reproducibility(self, name, extra_flags=None, delta=0.0001, resume_checkpoint='checkpoint1.pt', max_epoch=3): if (extra_flags is None): extra_flags = [] with tempfile.TemporaryDirectory(name) as data_dir: with self.as...
class TestResamplingDataset(unittest.TestCase): def setUp(self): self.strings = ['ab', 'c', 'def', 'ghij'] self.weights = [4.0, 2.0, 7.0, 1.5] self.size_ratio = 2 self.dataset = ListDataset(self.strings, np.array([len(s) for s in self.strings])) def _test_common(self, resampl...
class TestSequenceGeneratorBase(unittest.TestCase): def assertHypoTokens(self, hypo, tokens): self.assertTensorEqual(hypo['tokens'], torch.LongTensor(tokens)) def assertHypoScore(self, hypo, pos_probs, normalized=True, lenpen=1.0): pos_scores = torch.FloatTensor(pos_probs).log() self...
class TestSequenceGenerator(TestSequenceGeneratorBase): def setUp(self): (self.tgt_dict, self.w1, self.w2, src_tokens, src_lengths, self.model) = test_utils.sequence_generator_setup() self.sample = {'net_input': {'src_tokens': src_tokens, 'src_lengths': src_lengths}} def test_with_normalizat...
class TestDiverseBeamSearch(TestSequenceGeneratorBase): def setUp(self): d = test_utils.dummy_dictionary(vocab_size=2) self.assertEqual(d.pad(), 1) self.assertEqual(d.eos(), 2) self.assertEqual(d.unk(), 3) self.eos = d.eos() self.w1 = 4 self.w2 = 5 ...
class TestDiverseSiblingsSearch(TestDiverseBeamSearch): def assertHypoScore(self, hypo, pos_probs, sibling_rank, diversity_rate, normalized=True, lenpen=1.0): pos_scores = torch.FloatTensor(pos_probs).log() pos_scores.sub_((torch.Tensor(sibling_rank) * diversity_rate)) self.assertAlmostEq...
class TestTopPSamplingSearch(TestSequenceGeneratorBase): def setUp(self): d = test_utils.dummy_dictionary(vocab_size=2) self.assertEqual(d.pad(), 1) self.assertEqual(d.eos(), 2) self.assertEqual(d.unk(), 3) self.eos = d.eos() self.w1 = 4 self.w2 = 5 ...
class TestSequenceScorer(unittest.TestCase): def test_sequence_scorer(self): d = test_utils.dummy_dictionary(vocab_size=2) self.assertEqual(d.pad(), 1) self.assertEqual(d.eos(), 2) self.assertEqual(d.unk(), 3) eos = d.eos() w1 = 4 w2 = 5 data = [{'s...
class TestSparseMultiheadAttention(unittest.TestCase): def test_sparse_multihead_attention(self): attn_weights = torch.randn(1, 8, 8) bidirectional_sparse_mask = torch.tensor([[0, 0, 0, 0, 0, float('-inf'), float('-inf'), 0], [0, 0, 0, 0, 0, float('-inf'), float('-inf'), 0], [0, 0, 0, 0, 0, float...
class TestTokenBlockDataset(unittest.TestCase): def _build_dataset(self, data, **kwargs): sizes = [len(x) for x in data] underlying_ds = test_utils.TestDataset(data) return TokenBlockDataset(underlying_ds, sizes, **kwargs) def test_eos_break_mode(self): data = [torch.tensor([...
def mock_trainer(epoch, num_updates, iterations_in_epoch): trainer = MagicMock() trainer.load_checkpoint.return_value = {'train_iterator': {'epoch': epoch, 'iterations_in_epoch': iterations_in_epoch, 'shuffle': False}} trainer.get_num_updates.return_value = num_updates return trainer
def mock_dict(): d = MagicMock() d.pad.return_value = 1 d.eos.return_value = 2 d.unk.return_value = 3 return d
def get_trainer_and_epoch_itr(epoch, epoch_size, num_updates, iterations_in_epoch): tokens = torch.LongTensor(list(range(epoch_size))).view(1, (- 1)) tokens_ds = data.TokenBlockDataset(tokens, sizes=[tokens.size((- 1))], block_size=1, pad=0, eos=1, include_targets=False) trainer = mock_trainer(epoch, num_...
class TestLoadCheckpoint(unittest.TestCase): def setUp(self): self.args_mock = MagicMock() self.args_mock.optimizer_overrides = '{}' self.args_mock.reset_dataloader = False self.args_mock.reset_meters = False self.args_mock.reset_optimizer = False self.patches = {'...
class TestUtils(unittest.TestCase): def test_convert_padding_direction(self): pad = 1 left_pad = torch.LongTensor([[2, 3, 4, 5, 6], [1, 7, 8, 9, 10], [1, 1, 1, 11, 12]]) right_pad = torch.LongTensor([[2, 3, 4, 5, 6], [7, 8, 9, 10, 1], [11, 12, 1, 1, 1]]) self.assertAlmostEqual(rig...
class CrfRnnNet(Fcn8s): '\n The full CRF-RNN network with the FCN-8s backbone as described in the paper:\n\n Conditional Random Fields as Recurrent Neural Networks,\n S. Zheng, S. Jayasumana, B. Romera-Paredes, V. Vineet, Z. Su, D. Du, C. Huang and P. Torr,\n ICCV 2015 (https://arxiv.org/abs/1502.0324...
class CrfRnn(nn.Module): '\n PyTorch implementation of the CRF-RNN module described in the paper:\n\n Conditional Random Fields as Recurrent Neural Networks,\n S. Zheng, S. Jayasumana, B. Romera-Paredes, V. Vineet, Z. Su, D. Du, C. Huang and P. Torr,\n ICCV 2015 (https://arxiv.org/abs/1502.03240).\n ...
class PermutoFunction(torch.autograd.Function): @staticmethod def forward(ctx, q_in, features): q_out = permuto_cpp.forward(q_in, features)[0] ctx.save_for_backward(features) return q_out @staticmethod def backward(ctx, grad_q_out): feature_saved = ctx.saved_tensors[0...
def _spatial_features(image, sigma): '\n Return the spatial features as a Tensor\n\n Args:\n image: Image as a Tensor of shape (channels, height, wight)\n sigma: Bandwidth parameter\n\n Returns:\n Tensor of shape [h, w, 2] with spatial features\n ' sigma = float(sigma) (...
class AbstractFilter(ABC): '\n Super-class for permutohedral-based Gaussian filters\n ' def __init__(self, image): self.features = self._calc_features(image) self.norm = self._calc_norm(image) def apply(self, input_): output = PermutoFunction.apply(input_, self.features) ...
class SpatialFilter(AbstractFilter): '\n Gaussian filter in the spatial ([x, y]) domain\n ' def __init__(self, image, gamma): '\n Create new instance\n\n Args:\n image: Image tensor of shape (3, height, width)\n gamma: Standard deviation\n ' ...
class BilateralFilter(AbstractFilter): '\n Gaussian filter in the bilateral ([r, g, b, x, y]) domain\n ' def __init__(self, image, alpha, beta): '\n Create new instance\n\n Args:\n image: Image tensor of shape (3, height, width)\n alpha: Smoothness (spatial...
class DenseCRFParams(object): '\n Parameters for the DenseCRF model\n ' def __init__(self, alpha=160.0, beta=3.0, gamma=3.0, spatial_ker_weight=3.0, bilateral_ker_weight=5.0): '\n Default values were taken from https://github.com/sadeepj/crfasrnn_keras. More details about these parameter...
def main(): parser = argparse.ArgumentParser() parser.add_argument('--weights', help='Path to the .pth file (download from https://tinyurl.com/crfasrnn-weights-pth)', required=True) parser.add_argument('--image', help='Path to the input image', required=True) parser.add_argument('--output', help='Path...
def main(): input_file = 'image.jpg' output_file = 'labels.png' (img_data, img_h, img_w, size) = util.get_preprocessed_image(input_file) saved_weights_path = 'crfasrnn_weights.pth' model = CrfRnnNet() model.load_state_dict(torch.load(saved_weights_path)) model.eval() out = model.forwar...
class CrossEntropyLoss2d(nn.Module): def __init__(self, weight=None): super().__init__() self.loss = nn.NLLLoss2d(weight) def forward(self, outputs, targets): return self.loss(F.log_softmax(outputs), targets)
class MyDataset(torch.utils.data.Dataset): def __init__(self, imList, labelList, transform=None): self.imList = imList self.labelList = labelList self.transform = transform def __len__(self): return len(self.imList) def __getitem__(self, idx): image_name = self.i...
class iouEval(): def __init__(self, nClasses): self.nClasses = nClasses self.reset() def reset(self): self.overall_acc = 0 self.per_class_acc = np.zeros(self.nClasses, dtype=np.float32) self.per_class_iu = np.zeros(self.nClasses, dtype=np.float32) self.mIOU = ...
class CBR(nn.Module): def __init__(self, nIn, nOut, kSize, stride=1): super().__init__() padding = int(((kSize - 1) / 2)) self.conv = nn.Conv2d(nIn, nOut, kSize, stride=stride, padding=padding, bias=False) self.bn = nn.BatchNorm2d(nOut, momentum=0.95, eps=0.001) self.act =...
class CB(nn.Module): def __init__(self, nIn, nOut, kSize, stride=1): super().__init__() padding = int(((kSize - 1) / 2)) self.conv = nn.Conv2d(nIn, nOut, kSize, stride=stride, padding=padding, bias=False) self.bn = nn.BatchNorm2d(nOut, momentum=0.95, eps=0.001) def forward(se...
class C(nn.Module): def __init__(self, nIn, nOut, kSize, stride=1): super().__init__() padding = int(((kSize - 1) / 2)) self.conv = nn.Conv2d(nIn, nOut, kSize, stride=stride, padding=padding, bias=False) def forward(self, input): output = self.conv(input) return outpu...
class BasicResidualBlock(nn.Module): def __init__(self, nIn, nOut, prob=0.03): super().__init__() self.c1 = CBR(nIn, nOut, 3, 1) self.c2 = CB(nOut, nOut, 3, 1) self.act = nn.ReLU(True) def forward(self, input): output = self.c1(input) output = self.c2(output) ...
class DownSamplerA(nn.Module): def __init__(self, nIn, nOut): super().__init__() self.conv = CBR(nIn, nOut, 3, 2) def forward(self, input): output = self.conv(input) return output
class BR(nn.Module): def __init__(self, nOut): super().__init__() self.bn = nn.BatchNorm2d(nOut, momentum=0.95, eps=0.001) self.act = nn.ReLU(True) def forward(self, input): output = self.bn(input) output = self.act(output) return output
class CDilated(nn.Module): def __init__(self, nIn, nOut, kSize, stride=1, d=1): super().__init__() padding = (int(((kSize - 1) / 2)) * d) self.conv = nn.Conv2d(nIn, nOut, (kSize, kSize), stride=stride, padding=(padding, padding), bias=False, dilation=d) def forward(self, input): ...
class DilatedParllelResidualBlockB1(nn.Module): '\n ESP Block from ESPNet. See details here: ESPNet: Efficient Spatial Pyramid of Dilated Convolutions for Semantic Segmentation\n Link: https://arxiv.org/abs/1803.06815\n ' def __init__(self, nIn, nOut, prob=0.03): super().__init__() k...
class PSPDec(nn.Module): '\n Inspired or Adapted from Pyramid Scene Network paper\n Link: https://arxiv.org/abs/1612.01105\n ' def __init__(self, nIn, nOut, downSize, upSize=48): super().__init__() self.features = nn.Sequential(nn.AdaptiveAvgPool2d(downSize), nn.Conv2d(nIn, nOut, 1, ...
class ResNetC1(nn.Module): '\n This model uses ESP blocks for encoding and PSP blocks for decoding\n ' def __init__(self, classes): super().__init__() self.level1 = CBR(3, 16, 7, 2) self.p01 = PSPDec((16 + classes), classes, 160, 192) self.p02 = PSPDec((16 + classes), cl...
class ResNetD1(nn.Module): '\n This model uses ResNet blocks for encoding and PSP blocks for decoding\n ' def __init__(self, classes): super().__init__() self.level1 = CBR(3, 16, 7, 2) self.p01 = PSPDec((16 + classes), classes, 160, 192) self.p02 = PSPDec((16 + c...
def make_dot(var, params=None): ' Produces Graphviz representation of PyTorch autograd graph\n Blue nodes are the Variables that require grad, orange are Tensors\n saved for backward in torch.autograd.Function\n Args:\n var: output Variable\n params: dict of (name, Variable) to add names to...
def val(args, val_loader, model, criterion): model.eval() iouEvalVal = iouEval(args.classes) epoch_loss = [] total_batches = len(val_loader) for (i, (input, target)) in enumerate(val_loader): start_time = time.time() if (args.onGPU == True): input = input.cuda() ...
def train(args, train_loader, model, criterion, optimizer, epoch): model.train() iouEvalTrain = iouEval(args.classes) epoch_loss = [] total_batches = len(train_loader) for (i, (input, target)) in enumerate(train_loader): start_time = time.time() if (args.onGPU == True): ...
def save_checkpoint(state, filenameCheckpoint='checkpoint.pth.tar'): torch.save(state, filenameCheckpoint)
def trainValidateSegmentation(args): if (not os.path.isfile(args.cached_data_file)): dataLoader = ld.LoadData(args.data_dir, args.classes, args.cached_data_file) if (dataLoader is None): print('Error while processing the data. Please check') exit((- 1)) data = dataL...
class CrossEntropyLoss2d(nn.Module): def __init__(self, weight=None): super().__init__() self.loss = nn.NLLLoss2d(weight) def forward(self, outputs, targets): return self.loss(F.log_softmax(outputs), targets)
class MyDataset(torch.utils.data.Dataset): def __init__(self, imList, labelList, diagList, transform=None): self.imList = imList self.labelList = labelList self.diagList = diagList self.transform = transform def __len__(self): return len(self.imList) def __getite...
class iouEval(): def __init__(self, nClasses): self.nClasses = nClasses self.reset() def reset(self): self.overall_acc = 0 self.per_class_acc = np.zeros(self.nClasses, dtype=np.float32) self.per_class_iu = np.zeros(self.nClasses, dtype=np.float32) self.mIOU = ...
class CBR(nn.Module): def __init__(self, nIn, nOut, kSize, stride=1): super().__init__() padding = int(((kSize - 1) / 2)) self.conv = nn.Conv2d(nIn, nOut, kSize, stride=stride, padding=padding, bias=False) self.bn = nn.BatchNorm2d(nOut, momentum=0.95, eps=0.001) self.act =...
class CB(nn.Module): def __init__(self, nIn, nOut, kSize, stride=1): super().__init__() padding = int(((kSize - 1) / 2)) self.conv = nn.Conv2d(nIn, nOut, kSize, stride=stride, padding=padding, bias=False) self.bn = nn.BatchNorm2d(nOut, momentum=0.95, eps=0.001) def forward(se...
class C(nn.Module): def __init__(self, nIn, nOut, kSize, stride=1): super().__init__() padding = int(((kSize - 1) / 2)) self.conv = nn.Conv2d(nIn, nOut, kSize, stride=stride, padding=padding, bias=False) def forward(self, input): output = self.conv(input) return outpu...
class DownSampler(nn.Module): def __init__(self, nIn, nOut): super().__init__() self.conv = nn.Conv2d(nIn, (nOut - nIn), 3, stride=2, padding=1, bias=False) self.pool = nn.AvgPool2d(3, stride=2, padding=1) self.bn = nn.BatchNorm2d(nOut, momentum=0.95, eps=0.001) self.act =...
class BasicResidualBlock(nn.Module): def __init__(self, nIn, nOut, prob=0.03): super().__init__() self.c1 = CBR(nIn, nOut, 3, 1) self.c2 = CB(nOut, nOut, 3, 1) self.act = nn.ReLU(True) def forward(self, input): output = self.c1(input) output = self.c2(output) ...
class DownSamplerA(nn.Module): def __init__(self, nIn, nOut): super().__init__() self.conv = CBR(nIn, nOut, 3, 2) def forward(self, input): output = self.conv(input) return output
class BR(nn.Module): def __init__(self, nOut): super().__init__() self.bn = nn.BatchNorm2d(nOut, momentum=0.95, eps=0.001) self.act = nn.ReLU(True) def forward(self, input): output = self.bn(input) output = self.act(output) return output
class CDilated(nn.Module): def __init__(self, nIn, nOut, kSize, stride=1, d=1): super().__init__() padding = (int(((kSize - 1) / 2)) * d) self.conv = nn.Conv2d(nIn, nOut, (kSize, kSize), stride=stride, padding=(padding, padding), bias=False, dilation=d) def forward(self, input): ...
class CDilated1(nn.Module): def __init__(self, nIn, nOut, kSize, stride=1, d=1): super().__init__() padding = (int(((kSize - 1) / 2)) * d) self.conv = nn.Conv2d(nIn, nOut, (kSize, kSize), stride=stride, padding=(padding, padding), bias=False, dilation=d) self.br = BR(nOut) de...
class DilatedParllelResidualBlockB(nn.Module): def __init__(self, nIn, nOut, prob=0.03): super().__init__() n = int((nOut / 5)) n1 = (nOut - (4 * n)) self.c1 = C(nIn, n, 1, 1) self.d1 = CDilated(n, n1, 3, 1, 1) self.d2 = CDilated(n, n, 3, 1, 2) self.d4 = CD...
class DilatedParllelResidualBlockB1(nn.Module): def __init__(self, nIn, nOut, prob=0.03): super().__init__() n = int((nOut / 4)) n1 = (nOut - (3 * n)) self.c1 = C(nIn, n, 3, 1) self.d1 = CDilated(n, n1, 3, 1, 1) self.d2 = CDilated(n, n, 3, 1, 2) self.d4 = C...
class PSPDec(nn.Module): def __init__(self, nIn, nOut, downSize, upSize=48): super().__init__() self.features = nn.Sequential(nn.AdaptiveAvgPool2d(downSize), nn.Conv2d(nIn, nOut, 1, bias=False), nn.BatchNorm2d(nOut, momentum=0.95, eps=0.001), nn.ReLU(True), nn.Upsample(size=upSize, mode='bilinear...
class ResNetC1(nn.Module): '\n Segmentation model with ESP as the encoding block.\n This is the same as in stage 1\n ' def __init__(self, classes): super().__init__() self.level1 = CBR(3, 16, 7, 2) self.p01 = PSPDec((16 + classes), classes, 160, 192) self.p02 ...
class ResNetC1_YNet(nn.Module): '\n Jointly learning the segmentation and classification with ESP as encoding blocks\n ' def __init__(self, classes, diagClasses, segNetFile=None): super().__init__() self.level4_0 = DownSamplerA(512, 128) self.level4_1 = DilatedParllelResidualBlo...
class ResNetD1(nn.Module): '\n Segmentation model with RCB as encoding blocks.\n This is the same as in Stage 1\n ' def __init__(self, classes): super().__init__() self.level1 = CBR(3, 16, 7, 2) self.p01 = PSPDec((16 + classes), classes, 160, 192) self.p02 = P...
class ResNetD1_YNet(nn.Module): '\n Jointly learning the segmentation and classification with RCB as encoding blocks\n ' def __init__(self, classes, diagClasses, segNetFile=None): super().__init__() self.level4_0 = DownSamplerA(512, 128) self.level4_1 = BasicResidualBloc...
def make_dot(var, params=None): ' Produces Graphviz representation of PyTorch autograd graph\n Blue nodes are the Variables that require grad, orange are Tensors\n saved for backward in torch.autograd.Function\n Args:\n var: output Variable\n params: dict of (name, Variable) to add names to...
def val(args, val_loader, model, criterion, criterion1): model.eval() iouEvalVal = iouEval(args.classes) iouDiagEvalVal = iouEval(args.diagClasses) epoch_loss = [] class_loss = [] total_batches = len(val_loader) for (i, (input, target, target2)) in enumerate(val_loader): start_time...
def train(args, train_loader, model, criterion, criterion1, optimizer, epoch): model.train() iouEvalTrain = iouEval(args.classes) iouDiagEvalTrain = iouEval(args.diagClasses) epoch_loss = [] class_loss = [] total_batches = len(train_loader) for (i, (input, target, target2)) in enumerate(tr...
def save_checkpoint(state, filenameCheckpoint='checkpoint.pth.tar'): torch.save(state, filenameCheckpoint)
def trainValidateSegmentation(args): if (not os.path.isfile(args.cached_data_file)): dataLoader = ld.LoadData(args.data_dir, args.classes, args.diagClasses, args.cached_data_file) if (dataLoader == None): print('Error while caching the data. Please check') exit((- 1)) ...
class Data(): def __init__(self, args): kwargs = {} if (not args.cpu): kwargs['collate_fn'] = default_collate kwargs['pin_memory'] = True else: kwargs['collate_fn'] = default_collate kwargs['pin_memory'] = False self.loader_train = N...
class Benchmark(srdata.SRData): def __init__(self, args, train=True): super(Benchmark, self).__init__(args, train, benchmark=True) def _scan(self): list_hr = [] list_lr = [[] for _ in self.scale] for entry in os.scandir(self.dir_hr): filename = os.path.splitext(en...
class Demo(data.Dataset): def __init__(self, args, train=False): self.args = args self.name = 'Demo' self.scale = args.scale self.idx_scale = 0 self.train = False self.benchmark = False self.filelist = [] for f in os.listdir(args.dir_demo): ...
class DIV2K(srdata.SRData): def __init__(self, args, train=True): super(DIV2K, self).__init__(args, train) self.repeat = (args.test_every // (args.n_train // args.batch_size)) def _scan(self): list_hr = [] list_lr = [[] for _ in self.scale] if self.train: ...
class MyImage(data.Dataset): def __init__(self, args, train=False): self.args = args self.train = False self.name = 'MyImage' self.scale = args.scale self.idx_scale = 0 apath = ((((args.testpath + '/') + args.testset) + '/x') + str(args.scale[0])) self.file...
def _ms_loop(dataset, index_queue, data_queue, done_event, collate_fn, scale, seed, init_fn, worker_id): try: collate._use_shared_memory = True signal_handling._set_worker_signal_handlers() torch.set_num_threads(1) random.seed(seed) torch.manual_seed(seed) data_queu...
class _MSDataLoaderIter(_DataLoaderIter): def __init__(self, loader): self.dataset = loader.dataset self.scale = loader.scale self.collate_fn = loader.collate_fn self.batch_sampler = loader.batch_sampler self.num_workers = loader.num_workers self.pin_memory = (load...
class MSDataLoader(DataLoader): def __init__(self, cfg, *args, **kwargs): super(MSDataLoader, self).__init__(*args, **kwargs, num_workers=cfg.n_threads) self.scale = cfg.scale def __iter__(self): return _MSDataLoaderIter(self)
class Adversarial(nn.Module): def __init__(self, args, gan_type): super(Adversarial, self).__init__() self.gan_type = gan_type self.gan_k = args.gan_k self.discriminator = discriminator.Discriminator(args, gan_type) if (gan_type != 'WGAN_GP'): self.optimizer = ...
class Discriminator(nn.Module): def __init__(self, args, gan_type='GAN'): super(Discriminator, self).__init__() in_channels = 3 out_channels = 64 depth = 7 bn = True act = nn.LeakyReLU(negative_slope=0.2, inplace=True) m_features = [common.BasicBlock(args.n...
class VGG(nn.Module): def __init__(self, conv_index, rgb_range=1): super(VGG, self).__init__() vgg_features = models.vgg19(pretrained=True).features modules = [m for m in vgg_features] if (conv_index == '22'): self.vgg = nn.Sequential(*modules[:8]) elif (conv_i...
def default_conv(in_channels, out_channels, kernel_size, bias=True): return nn.Conv2d(in_channels, out_channels, kernel_size, padding=(kernel_size // 2), bias=bias)
class MeanShift(nn.Conv2d): def __init__(self, rgb_range, rgb_mean, rgb_std, sign=(- 1)): super(MeanShift, self).__init__(3, 3, kernel_size=1) std = torch.Tensor(rgb_std) self.weight.data = torch.eye(3).view(3, 3, 1, 1) self.weight.data.div_(std.view(3, 1, 1, 1)) self.bias...
class BasicBlock(nn.Sequential): def __init__(self, in_channels, out_channels, kernel_size, stride=1, bias=False, bn=True, act=nn.ReLU(True)): m = [nn.Conv2d(in_channels, out_channels, kernel_size, padding=(kernel_size // 2), stride=stride, bias=bias)] if bn: m.append(nn.BatchNorm2d(o...
class ResBlock(nn.Module): def __init__(self, conv, n_feat, kernel_size, bias=True, bn=False, act=nn.ReLU(True), res_scale=1): super(ResBlock, self).__init__() m = [] for i in range(2): m.append(conv(n_feat, n_feat, kernel_size, bias=bias)) if bn: m...
class Upsampler(nn.Sequential): def __init__(self, conv, scale, n_feat, bn=False, act=False, bias=True): m = [] if ((scale & (scale - 1)) == 0): for _ in range(int(math.log(scale, 2))): m.append(conv(n_feat, (4 * n_feat), 3, bias)) m.append(nn.PixelShuf...
def make_model(args, parent=False): return DRLN(args)
class CALayer(nn.Module): def __init__(self, channel, reduction=16): super(CALayer, self).__init__() self.avg_pool = nn.AdaptiveAvgPool2d(1) self.c1 = ops.BasicBlock(channel, (channel // reduction), 3, 1, 3, 3) self.c2 = ops.BasicBlock(channel, (channel // reduction), 3, 1, 5, 5) ...
class Block(nn.Module): def __init__(self, in_channels, out_channels, group=1): super(Block, self).__init__() self.r1 = ops.ResidualBlock(in_channels, out_channels) self.r2 = ops.ResidualBlock((in_channels * 2), (out_channels * 2)) self.r3 = ops.ResidualBlock((in_channels * 4), (o...
class DRLN(nn.Module): def __init__(self, args): super(DRLN, self).__init__() self.scale = args.scale[0] chs = 64 self.sub_mean = ops.MeanShift((0.4488, 0.4371, 0.404), sub=True) self.add_mean = ops.MeanShift((0.4488, 0.4371, 0.404), sub=False) self.head = nn.Conv2...
def init_weights(modules): pass
class MeanShift(nn.Module): def __init__(self, mean_rgb, sub): super(MeanShift, self).__init__() sign = ((- 1) if sub else 1) r = (mean_rgb[0] * sign) g = (mean_rgb[1] * sign) b = (mean_rgb[2] * sign) self.shifter = nn.Conv2d(3, 3, 1, 1, 0) self.shifter.wei...
class BasicBlock(nn.Module): def __init__(self, in_channels, out_channels, ksize=3, stride=1, pad=1, dilation=1): super(BasicBlock, self).__init__() self.body = nn.Sequential(nn.Conv2d(in_channels, out_channels, ksize, stride, pad, dilation), nn.ReLU(inplace=True)) init_weights(self.modul...
class GBasicBlock(nn.Module): def __init__(self, in_channels, out_channels, ksize=3, stride=1, pad=1, dilation=1): super(GBasicBlock, self).__init__() self.body = nn.Sequential(nn.Conv2d(in_channels, out_channels, ksize, stride, pad, dilation, groups=4), nn.ReLU(inplace=True)) init_weight...
class BasicBlockSig(nn.Module): def __init__(self, in_channels, out_channels, ksize=3, stride=1, pad=1): super(BasicBlockSig, self).__init__() self.body = nn.Sequential(nn.Conv2d(in_channels, out_channels, ksize, stride, pad), nn.Sigmoid()) init_weights(self.modules) def forward(self...
class GBasicBlockSig(nn.Module): def __init__(self, in_channels, out_channels, ksize=3, stride=1, pad=1): super(GBasicBlockSig, self).__init__() self.body = nn.Sequential(nn.Conv2d(in_channels, out_channels, ksize, stride, pad, groups=4), nn.Sigmoid()) init_weights(self.modules) def ...
class ResidualBlock(nn.Module): def __init__(self, in_channels, out_channels): super(ResidualBlock, self).__init__() self.body = nn.Sequential(nn.Conv2d(in_channels, out_channels, 3, 1, 1), nn.ReLU(inplace=True), nn.Conv2d(out_channels, out_channels, 3, 1, 1)) init_weights(self.modules) ...
class GResidualBlock(nn.Module): def __init__(self, in_channels, out_channels): super(GResidualBlock, self).__init__() self.body = nn.Sequential(nn.Conv2d(in_channels, out_channels, 3, 1, 1, groups=4), nn.ReLU(inplace=True), nn.Conv2d(out_channels, out_channels, 1, 1, 0)) init_weights(sel...
class EResidualBlock(nn.Module): def __init__(self, in_channels, out_channels, group=1): super(EResidualBlock, self).__init__() self.body = nn.Sequential(nn.Conv2d(in_channels, out_channels, 3, 1, 1, groups=group), nn.ReLU(inplace=True), nn.Conv2d(out_channels, out_channels, 3, 1, 1, groups=group...
class ConvertBlock(nn.Module): def __init__(self, in_channels, out_channels, blocks): super(ConvertBlock, self).__init__() self.body = nn.Sequential(nn.Conv2d((in_channels * blocks), ((out_channels * blocks) // 2), 3, 1, 1), nn.ReLU(inplace=True), nn.Conv2d(((out_channels * blocks) // 2), ((out_c...
class UpsampleBlock(nn.Module): def __init__(self, n_channels, scale, multi_scale, group=1): super(UpsampleBlock, self).__init__() if multi_scale: self.up2 = _UpsampleBlock(n_channels, scale=2, group=group) self.up3 = _UpsampleBlock(n_channels, scale=3, group=group) ...
class _UpsampleBlock(nn.Module): def __init__(self, n_channels, scale, group=1): super(_UpsampleBlock, self).__init__() modules = [] if ((scale == 2) or (scale == 4) or (scale == 8)): for _ in range(int(math.log(scale, 2))): modules += [nn.Conv2d(n_channels, (4...