6007 reverse_indexing for PILReader

[wyli]

Fixes #6007

Description

• reverse_indexing = False:
  to support consistency with PIL/torchvision

img = LoadImage(image_only=True, ensure_channel_first=True, reverse_indexing=False)("MONAI-logo_color.png")  # PILReader
torchvision.utils.save_image(img, "MONAI-logo_color_torchvision.png", normalize=True)

• reverse_indexing = True:
  to support consistency with other backends in monai

img = LoadImage(image_only=True, ensure_channel_first=True, reader="PILReader", reverse_indexing=True)(filename)  # PIL backend
img_1 = LoadImage(image_only=True, ensure_channel_first=True, reader="ITKReader")(filename)  # itk backend
np.testing.assert_allclose(img, img_1)  # true

Types of changes

• Non-breaking change (fix or new feature that would not break existing functionality).
• Breaking change (fix or new feature that would cause existing functionality to change).
• 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 --disttests.
• In-line docstrings updated.
• Documentation updated, tested make html command in the docs/ folder.

[holgerroth]

That's useful. Thanks!

[wyli]

/build

[wyli]

/build

[wyli]

/build