cuCIM Transform

[drbeh]

Description

This PR implements a wrapper for cuCIM transforms to be used in combination with MONAI transforms.

Types of changes

• Non-breaking change (fix or new feature that would not break existing functionality).
• New tests added to cover the changes.
• Integration tests passed locally by running ./runtests.sh -f -u --net --coverage.
• Quick tests passed locally by running ./runtests.sh --quick --unittests.
• In-line docstrings updated.
• Documentation updated, tested make html command in the docs/ folder.

[drbeh]

@wyli @Nic-Ma do you know why the min tests are failing?
https://github.com/Project-MONAI/MONAI/pull/2932/checks?check_run_id=3591023115#step:8:115

Is it because of following dependency?

MONAI/monai/transforms/utility/array.py

Lines 44 to 47 in 2c260b9

	if TYPE_CHECKING:
	from cupy import ndarray as cp_ndarray
	else:
	cp_ndarray, _ = optional_import("cupy", name="ndarray")

[Nic-Ma]

Hi @wyli ,

I remember we faced this error before, but I can't clearly remember the details.. Do you have any idea?

Thanks in advance.

[wyli]

@wyli @Nic-Ma do you know why the min tests are failing?
https://github.com/Project-MONAI/MONAI/pull/2932/checks?check_run_id=3591023115#step:8:115

Is it because of following dependency?

MONAI/monai/transforms/utility/array.py

Lines 44 to 47 in 2c260b9

	if TYPE_CHECKING:
	from cupy import ndarray as cp_ndarray
	else:
	cp_ndarray, _ = optional_import("cupy", name="ndarray")

yes, cp_ndarray can't be used as a type annotation (such as def __call__(self, data: cp_ndarray):) because it'll be evaluated on some user environment and raise an error when there's no cupy installation.