Added more complex tissue detection method for complexer tissues (#1074)

* added weka-like method

* upped logreg steps

* added warning when invalid corner params for weka method

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* added tests

* added border arg

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* simplified

* images from runner

* reviewer feedback

* added more tests

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* images from runner

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Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

Author: timtreis

src/squidpy/experimental/im/__init__.py

@@ -3,13 +3,15 @@
 from ._detect_tissue import (
     BackgroundDetectionParams,
     FelzenszwalbParams,
+    WekaParams,
     detect_tissue,
 )
 from ._make_tiles import make_tiles, make_tiles_from_spots
 
 __all__ = [
     "BackgroundDetectionParams",
     "FelzenszwalbParams",
+    "WekaParams",
     "detect_tissue",
     "make_tiles",
     "make_tiles_from_spots",