Add resample pipeline to @itk-wasm/downsample (transform + selectable interpolator)

packages/downsample/CMakeLists.txt

@@ -13,6 +13,8 @@ elseif(WASI)
 else()
   set(io_components
     ITKImageIO
+    ITKIOTransformInsightLegacy
+    ITKIOTransformHDF5
     )
 endif()
 
@@ -21,12 +23,14 @@ find_package(ITK REQUIRED
    WebAssemblyInterface
    ITKSmoothing
    ITKImageGrid
+   ITKImageFunction
+   ITKTransform
    GenericLabelInterpolator
    ${io_components}
  )
 include(${ITK_USE_FILE})
 
-foreach(pipeline downsample downsample-sigma gaussian-kernel-radius downsample-bin-shrink downsample-label-image)
+foreach(pipeline downsample downsample-sigma gaussian-kernel-radius downsample-bin-shrink downsample-label-image resample)
   add_executable(${pipeline} ${pipeline}.cxx)
   target_link_libraries(${pipeline} PUBLIC ${ITK_LIBRARIES})
   target_include_directories(${pipeline} PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})
@@ -69,3 +73,66 @@ add_test(NAME downsample-label-image
     ${CMAKE_CURRENT_BINARY_DIR}/cthead1_downsampled_label_image.png
     --shrink-factors 2 2
     )
+
+# Self-contained smoke test: use cthead1.png as both the moving image and the
+# reference geometry with the default identity transform, so the resampled
+# output closely matches the input. Needs no new test data.
+add_test(NAME resample
+  COMMAND resample
+    ${CMAKE_CURRENT_SOURCE_DIR}/test/data/input/cthead1.png
+    ${CMAKE_CURRENT_SOURCE_DIR}/test/data/input/cthead1.png
+    ${CMAKE_CURRENT_BINARY_DIR}/cthead1_resampled.png
+    --interpolator linear
+    )
+
+# Interpolator coverage: one self-contained test per interpolator, using
+# cthead1.png as both the moving image and the reference geometry (identity
+# transform), so every interpolator selection is exercised. Needs no new data.
+add_test(NAME resample-linear
+  COMMAND resample
+    ${CMAKE_CURRENT_SOURCE_DIR}/test/data/input/cthead1.png
+    ${CMAKE_CURRENT_SOURCE_DIR}/test/data/input/cthead1.png
+    ${CMAKE_CURRENT_BINARY_DIR}/cthead1_resampled_linear.png
+    --interpolator linear
+    )
+
+add_test(NAME resample-nearest-neighbor
+  COMMAND resample
+    ${CMAKE_CURRENT_SOURCE_DIR}/test/data/input/cthead1.png
+    ${CMAKE_CURRENT_SOURCE_DIR}/test/data/input/cthead1.png
+    ${CMAKE_CURRENT_BINARY_DIR}/cthead1_resampled_nearest_neighbor.png
+    --interpolator nearest_neighbor
+    )
+
+add_test(NAME resample-b-spline
+  COMMAND resample
+    ${CMAKE_CURRENT_SOURCE_DIR}/test/data/input/cthead1.png
+    ${CMAKE_CURRENT_SOURCE_DIR}/test/data/input/cthead1.png
+    ${CMAKE_CURRENT_BINARY_DIR}/cthead1_resampled_b_spline.png
+    --interpolator b_spline
+    )
+
+add_test(NAME resample-windowed-sinc
+  COMMAND resample
+    ${CMAKE_CURRENT_SOURCE_DIR}/test/data/input/cthead1.png
+    ${CMAKE_CURRENT_SOURCE_DIR}/test/data/input/cthead1.png
+    ${CMAKE_CURRENT_BINARY_DIR}/cthead1_resampled_windowed_sinc.png
+    --interpolator windowed_sinc
+    )
+
+add_test(NAME resample-gaussian
+  COMMAND resample
+    ${CMAKE_CURRENT_SOURCE_DIR}/test/data/input/cthead1.png
+    ${CMAKE_CURRENT_SOURCE_DIR}/test/data/input/cthead1.png
+    ${CMAKE_CURRENT_BINARY_DIR}/cthead1_resampled_gaussian.png
+    --interpolator gaussian
+    )
+
+# Label-image interpolator on the existing multi-label test image.
+add_test(NAME resample-label-image
+  COMMAND resample
+    ${CMAKE_CURRENT_SOURCE_DIR}/test/data/input/2th_cthead1.png
+    ${CMAKE_CURRENT_SOURCE_DIR}/test/data/input/2th_cthead1.png
+    ${CMAKE_CURRENT_BINARY_DIR}/2th_cthead1_resampled_label_image.png
+    --interpolator label_image
+    )

packages/downsample/package.json

@@ -7,9 +7,9 @@
   "itk-wasm": {
     "emscripten-docker-image": "docker.io/itkwasm/emscripten:latest",
     "wasi-docker-image": "docker.io/itkwasm/wasi:latest",
-    "test-data-hash": "bafkreigtrr3oeqaunbyhrpuvvhc5hfmpbddc4u52jvonsvr2m2xe5ni3jq",
+    "test-data-hash": "bafkreiesjpg3sjqkyjb77djrffdvznjjsgvudd2y44iqjrfgnd45uyyprq",
     "test-data-urls": [
-      "https://itk.mypinata.cloud/ipfs/bafkreigtrr3oeqaunbyhrpuvvhc5hfmpbddc4u52jvonsvr2m2xe5ni3jq"
+      "https://itk.mypinata.cloud/ipfs/bafkreiesjpg3sjqkyjb77djrffdvznjjsgvudd2y44iqjrfgnd45uyyprq"
     ],
     "typescript-package-name": "@itk-wasm/downsample",
     "python-package-name": "itkwasm-downsample",
@@ -28,7 +28,7 @@
     "build:gen:typescript": "itk-wasm pnpm-script build:gen:typescript",
     "build:gen:python": "pnpm build:wasi && pnpm bindgen:python",
     "test": "pnpm test:data:download && pnpm build:gen:python && pnpm test:python",
-    "test:data:download": "dam download test/data test/data.tar.gz bafkreigtrr3oeqaunbyhrpuvvhc5hfmpbddc4u52jvonsvr2m2xe5ni3jq https://itk.mypinata.cloud/ipfs/bafkreigtrr3oeqaunbyhrpuvvhc5hfmpbddc4u52jvonsvr2m2xe5ni3jq",
+    "test:data:download": "dam download test/data test/data.tar.gz bafkreiesjpg3sjqkyjb77djrffdvznjjsgvudd2y44iqjrfgnd45uyyprq https://itk.mypinata.cloud/ipfs/bafkreiesjpg3sjqkyjb77djrffdvznjjsgvudd2y44iqjrfgnd45uyyprq",
     "test:data:pack": "dam pack test/data test/data.tar.gz",
     "test:python:wasi": "pnpm test:data:download && pixi run --manifest-path=./pixi.toml test-wasi",
     "test:python:emscripten": "pnpm test:data:download && pixi run --manifest-path=./pixi.toml test-emscripten",