feat(python): add Image bufferedRegion

In itk native Python 5.4.0.

`size` is the size of the largest possible region.

`bufferedRegion` is the region in the largest possible region for the
associated pixel `data`.

Author: thewtex

packages/core/python/itkwasm/itkwasm/__init__.py

@@ -3,7 +3,7 @@
 __version__ = "1.0b171"
 
 from .interface_types import InterfaceTypes
-from .image import Image, ImageType
+from .image import Image, ImageType, ImageRegion
 from .pointset import PointSet, PointSetType
 from .mesh import Mesh, MeshType
 from .polydata import PolyData, PolyDataType
@@ -31,6 +31,7 @@
   "PipelineOutput",
   "Image",
   "ImageType",
+  "ImageRegion",
   "PointSet",
   "PointSetType",
   "Mesh",

packages/core/python/itkwasm/itkwasm/image.py

@@ -22,6 +22,11 @@ class ImageType:
 def _default_direction() -> ArrayLike:
     return np.empty((0,), np.float64)
 
+@dataclass
+class ImageRegion:
+    index: Sequence[int] = field(default_factory=list)
+    size: Sequence[int] = field(default_factory=list)
+
 @dataclass
 class Image:
     imageType: Union[ImageType, Dict] = field(default_factory=ImageType)
@@ -32,6 +37,7 @@ class Image:
     size: Sequence[int] = field(default_factory=list)
     metadata: Dict = field(default_factory=dict)
     data: Optional[ArrayLike] = None
+    bufferedRegion: Optional[ImageRegion] = None
 
     def __post_init__(self):
         if isinstance(self.imageType, dict):
@@ -49,3 +55,6 @@ def __post_init__(self):
 
         if len(self.size) == 0:
             self.size += [1,] * dimension
+
+        if self.bufferedRegion is None:
+            self.bufferedRegion = ImageRegion(index=[0,]*dimension, size=self.size)

packages/core/python/itkwasm/pyproject.toml

@@ -19,6 +19,7 @@ classifiers = [
     'Programming Language :: Python :: 3.9',
     'Programming Language :: Python :: 3.10',
     'Programming Language :: Python :: 3.11',
+    'Programming Language :: Python :: 3.12',
 ]
 keywords = [
     "itk",
@@ -43,7 +44,7 @@ Issues = "https://github.com/InsightSoftwareConsortium/itk-wasm/issues"
 
 [tool.hatch.envs.default]
 dependencies = [
-    "itk>=5.3.0",
+    "itk>=5.4.0",
     "pytest >=2.7.3",
     "pytest-pyodide",
     "dask[array]",

packages/core/python/itkwasm/test/test_image.py

@@ -35,4 +35,4 @@ def test_image_defaults():
     assert image.size[1] == 1
 
     assert isinstance(image.metadata, dict)
-    assert image.data == None
+    assert image.data == None