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RandAffine/RandAffined skipping the resampling if do_transform is False #2124

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#2151
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RandAffine/RandAffined skipping the resampling if do_transform is False#2124
#2151
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enhancementNew feature or request
@wyli

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@wyli
wyli
opened on Apr 30, 2021

Is your feature request related to a problem? Please describe.
when do_transform is False and the spatial_size isn't set, the resampling step of RandAffine could be skipped for better performance, for example:

MONAI/monai/transforms/spatial/array.py

Lines 1441 to 1444 in fd9081b

if self._do_transform:
grid = self.rand_affine_grid(spatial_size=sp_size)
else:
grid = create_grid(spatial_size=sp_size)

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