Nils Lehmann nilsleh
wiseodd
/ llla_img2img.ipynb
Created
November 23, 2022 13:38
Last-Layer Laplace for Image2Image Problems
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calebrob6
/ running_stats_in_torch.py
Last active
July 7, 2024 08:48
A class for computing online mean and variance of multi-dimensional arrays in PyTorch (i.e. for computing per-channel stats over large image datasets).
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| import torch | |
| class RunningStatsButFast(torch.nn.Module): | |
| def __init__(self, shape, dims): | |
| """Initializes the RunningStatsButFast method. | |
| A PyTorch module that can be put on the GPU and calculate the multidimensional | |
| mean and variance of inputs online in a numerically stable way. This is useful | |
| for calculating the channel-wise mean and variance of a big dataset because you | |
| don't have to load the entire dataset into memory. |