COMP: Skip non-comparable Python baseline test for ConvolveImageWithKernel

The Python example emits the raw convolved image (512x342, grayscale),
while the shared C++ baseline is a QuickView render-window screenshot
(602x302, RGB). The auto-generated ConvolveImageWithKernelTestBaseline-
ComparisonPython test compared these and failed on the size mismatch.

Add a NO_PYTHON_COMPARISON option to compare_to_baseline() and use it
for ConvolveImageWithKernel so only the run-only Python test remains.

Co-Authored-By: Pranjal Sahu <23420081+PranjalSahu@users.noreply.github.com>

Author: hjmjohnson

CMake/ITKSphinxExamplesMacros.cmake

@@ -100,6 +100,10 @@ endmacro()
 #
 #   [OPTIONS myListOfOptions]        // Options to pass to ImageCompareCommand.
 #
+#   [NO_PYTHON_COMPARISON]           // Skip the auto-added Python baseline comparison
+#                                    // when the Python output is not pixel-comparable
+#                                    // to the C++ baseline (e.g. a Matplotlib figure).
+#
 #   [DEPENDS myListOfDependencies]   // Other tests that the comparison test will
 #                                    // depend on. By default, the dependency is assumed
 #                                    // to be ${EXAMPLE_NAME}Test. For Python, the comparison
@@ -110,6 +114,7 @@ endmacro()
 function(compare_to_baseline)
   set(options
     PYTHON_ONLY
+    NO_PYTHON_COMPARISON
   )
 
   set(oneValueArgs
@@ -174,7 +179,7 @@ function(compare_to_baseline)
     )
   endif()
 
-  if(ITK_WRAP_PYTHON AND EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/${LOCAL_COMPARISON_EXAMPLE_NAME}/Code.py")
+  if(ITK_WRAP_PYTHON AND NOT LOCAL_COMPARISON_NO_PYTHON_COMPARISON AND EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/${LOCAL_COMPARISON_EXAMPLE_NAME}/Code.py")
     set(python_test_name ${test_name}Python)
     get_filename_component(test_image_we "${test_image}" NAME_WE)
     get_filename_component(test_image_dir "${test_image}" DIRECTORY)

src/Filtering/Convolution/CMakeLists.txt

@@ -16,6 +16,9 @@ compare_to_baseline(EXAMPLE_NAME NormalizedCorrelationUsingFFTWithMaskImages
 add_example(ConvolveImageWithKernel)
 compare_to_baseline(EXAMPLE_NAME ConvolveImageWithKernel
   BASELINE_PREFIX ConvolveImageWithKernel
+  # The Python example emits a raw convolved image, not the C++ QuickView
+  # screenshot, so the two are not pixel-comparable.
+  NO_PYTHON_COMPARISON
   )
 
 # TODO:  Fix building of ColorNormalizedCorrelation example