3 examples of 'convert list to tensor' in Python

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140def __to_ndarray_list(tensors, titles):
141 if not isinstance(tensors, list):
142 tensors = [tensors]
143 titles = [titles]
144 assert len(titles) == len(tensors),\
145 "[visualizer]: {} titles are not enough for {} tensors".format(
146 len(titles), len(tensors))
147 for i in range(len(tensors)):
148 if torch.is_tensor(tensors[i]):
149 tensors[i] = tensors[i].cpu().detach().numpy()
150 return tensors, titles
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111def _to_tensors(self, ts):
112 x = []
113 y = []
114 for sample in ts:
115 x.append(sample['word'].squeeze())
116 y.append(sample['y'].squeeze())
117 return np.stack(x), np.stack(y)
396def tensor_to_ndarray(tensor):
397 """
398 Convert float tensor into numpy image
399
400 :param tensor: input tensor
401 :type tensor: torch.Tensor
402 :return: numpy image
403 :rtype: np.ndarray
404 """
405 tensor_np = tensor.permute(1, 2, 0).cpu().numpy()
406 tensor_np = tensor_np.astype(np.float32)
407 tensor_np = (tensor_np * 255).astype(np.uint8)
408 return tensor_np

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