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Co-authored-by: vfdev-5 <vfdev.5@gmail.com>

Co-authored-by: Nicolas Hug <nh.nicolas.hug@gmail.com>

Co-authored-by: Nicolas Hug <contact@nicolas-hug.com>
Co-authored-by: vfdev-5 <vfdev.5@gmail.com>

Co-authored-by: Nicolas Hug <contact@nicolas-hug.com>

Co-authored-by: vfdev-5 <vfdev.5@gmail.com>

Co-authored-by: Philip Meier <github.pmeier@posteo.de>
Co-authored-by: vfdev <vfdev.5@gmail.com>

Co-authored-by: Philip Meier <github.pmeier@posteo.de>

* rename features._Feature to datapoints.Datapoint

* _Datapoint to Datapoint

* move is_simple_tensor to transforms.utils

* fix CI

* move Datapoint out of public namespace

* introduce type failures in dispatchers

* add type checks to all dispatchers

* add missing else

* add test

* fix convert_color_space

* Remove `_FT` usages from functional

* Update error messages

* Clean up `_get_inverse_affine_matrix` and `_compute_affine_output_size`

* Optimize `_apply_grid_transform`

* Cleanup `_assert_grid_transform_inputs`

* Fix bugs on `_pad_with_scalar_fill` & `crop_mask` and port `crop_image_tensor`

* Call directly `_pad_with_scalar_fill`

* Fix linter

* Clean up `center_crop_image_tensor`

* Fix comments.

* Fixing rounding issues.

* Bumping tolerance for rotate which is unrelated to this PR.

* Fix tolerance threshold for RandomPerspective.

* Clean up `_affine_grid` and `affine_image_tensor`

* Clean up `rotate_image_tensor`

* Fixing linter

* Address code-review comments.

* Port elastic and minor cleanups

* Update torchvision/prototype/transforms/functional/_geometry.py
Co-authored-by: Philip Meier <github.pmeier@posteo.de>
Co-authored-by: Philip Meier <github.pmeier@posteo.de>

* add a signature consistency tests for v1 vs. v2 dispatchers

* temporarily increase test verbosity

* Revert "temporarily increase test verbosity"

This reverts commit 468c73f727af8dde8a2a3cc3063fd64923c50f63.

* fix test to allow annotation deviations

* fill <-> center for rotate

* ignore annotation changes for center / translate in rotate / affine

* [proto] small optim for perspective op on images, reverted concat trick on bboxes

* revert unrelated changes

* PR review updates

* PR review change

* Restore BC on perspective

* Fixes linter

* Fixing tests.

* Apply code-review changes.

* Pleasing mypy.

* Revert named parameters.

* [proto] Small optims for elastic op on bboxes

* More inplace ops according to the review

* Create grid on device directly. This should be faster

* PR Review update. Apply ceil on float input

* remove unnecessary changes from pad_image_tensor

* cleanup

* fix fill=None workaround

* address review comments

* remove more xfails

* Bbox resize optimization

* Other (untested) optimizations on `_affine_bounding_box_xyxy` and `elastic_bounding_box`.

* fix conflict

* Reverting changes on elastic

* revert one more change

* Further improvement