COMP: Tolerate one intensity level in six baseline comparisons

hjmjohnson · hjmjohnson · commit 38d8f428bb0d · 2026-06-11T18:48:16.000-05:00
The pip itk 5.4.6 wheels and ITK main round differently at quantization
boundaries, leaving pixels one gray-level apart (plus sub-integer FFT
float noise) between Python and C++ example outputs compared against
shared baselines.
diff --git a/src/Core/Transform/CMakeLists.txt b/src/Core/Transform/CMakeLists.txt
@@ -43,4 +43,5 @@ compare_to_baseline(EXAMPLE_NAME GlobalRegistrationTwoImagesBSpline
 add_example(DeformAVolumeWithAThinPlateSpline)
 compare_to_baseline(EXAMPLE_NAME DeformAVolumeWithAThinPlateSpline
   BASELINE_PREFIX DeformedImageBaseline
+  OPTIONS --tolerance-intensity 1
   )
diff --git a/src/Filtering/FFT/CMakeLists.txt b/src/Filtering/FFT/CMakeLists.txt
@@ -4,12 +4,14 @@ compare_to_baseline(
   EXAMPLE_NAME ComputeFFTInOneDimension
   TEST_NAME ComputeFFTInOneDimensionModulusBaselineComparison
   BASELINE_PREFIX MouseLiver1DFFTModulusOutputBaseline
+  OPTIONS --tolerance-intensity 1
 )
 compare_to_baseline(
   PYTHON_ONLY
   EXAMPLE_NAME ComputeFFTInOneDimension
   TEST_NAME ComputeFFTInOneDimensionPhaseBaselineComparison
   BASELINE_PREFIX MouseLiver1DFFTPhaseOutputBaseline
+  OPTIONS --tolerance-intensity 1
 )
 
 compare_to_baseline(
@@ -53,4 +55,5 @@ compare_to_baseline(
 add_example(ComputeInverseFFTOfImage)
 compare_to_baseline(EXAMPLE_NAME ComputeInverseFFTOfImage
   BASELINE_PREFIX ComputeInverseFFTOfImage
+  OPTIONS --tolerance-intensity 1
   )
diff --git a/src/Filtering/ImageGrid/CMakeLists.txt b/src/Filtering/ImageGrid/CMakeLists.txt
@@ -36,6 +36,7 @@ add_example(ResampleAnImage)
 compare_to_baseline(
   EXAMPLE_NAME ResampleAnImage
   BASELINE_PREFIX OutputBaseline
+  OPTIONS --tolerance-intensity 1
 )
 
 add_example(UpsampleAnImage)
diff --git a/src/Filtering/ImageIntensity/CMakeLists.txt b/src/Filtering/ImageIntensity/CMakeLists.txt
@@ -11,7 +11,8 @@ add_example(ApplyAtanImageFilter)
 compare_to_baseline(EXAMPLE_NAME ApplyAtanImageFilter BASELINE_PREFIX OutputBaseline)
 
 add_example(ConvertRGBImageToGrayscaleImage)
-compare_to_baseline(EXAMPLE_NAME ConvertRGBImageToGrayscaleImage BASELINE_PREFIX OutputBaseline)
+compare_to_baseline(EXAMPLE_NAME ConvertRGBImageToGrayscaleImage BASELINE_PREFIX OutputBaseline
+  OPTIONS --tolerance-intensity 1)
 
 add_example(MultiplyImageByScalar)
 compare_to_baseline(EXAMPLE_NAME MultiplyImageByScalar BASELINE_PREFIX OutputBaseline)

Original file line number	Diff line number	Diff line change
`@@ -43,4 +43,5 @@ compare_to_baseline(EXAMPLE_NAME GlobalRegistrationTwoImagesBSpline`
`43`	`43`	`add_example(DeformAVolumeWithAThinPlateSpline)`
`44`	`44`	`compare_to_baseline(EXAMPLE_NAME DeformAVolumeWithAThinPlateSpline`
`45`	`45`	`BASELINE_PREFIX DeformedImageBaseline`
	`46`	`+ OPTIONS --tolerance-intensity 1`
`46`	`47`	`)`
Original file line number	Diff line number	Diff line change
`@@ -4,12 +4,14 @@ compare_to_baseline(`
`4`	`4`	`EXAMPLE_NAME ComputeFFTInOneDimension`
`5`	`5`	`TEST_NAME ComputeFFTInOneDimensionModulusBaselineComparison`
`6`	`6`	`BASELINE_PREFIX MouseLiver1DFFTModulusOutputBaseline`
	`7`	`+ OPTIONS --tolerance-intensity 1`
`7`	`8`	`)`
`8`	`9`	`compare_to_baseline(`
`9`	`10`	`PYTHON_ONLY`
`10`	`11`	`EXAMPLE_NAME ComputeFFTInOneDimension`
`11`	`12`	`TEST_NAME ComputeFFTInOneDimensionPhaseBaselineComparison`
`12`	`13`	`BASELINE_PREFIX MouseLiver1DFFTPhaseOutputBaseline`
	`14`	`+ OPTIONS --tolerance-intensity 1`
`13`	`15`	`)`
`14`	`16`
`15`	`17`	`compare_to_baseline(`
`@@ -53,4 +55,5 @@ compare_to_baseline(`
`53`	`55`	`add_example(ComputeInverseFFTOfImage)`
`54`	`56`	`compare_to_baseline(EXAMPLE_NAME ComputeInverseFFTOfImage`
`55`	`57`	`BASELINE_PREFIX ComputeInverseFFTOfImage`
	`58`	`+ OPTIONS --tolerance-intensity 1`
`56`	`59`	`)`
Original file line number	Diff line number	Diff line change
`@@ -36,6 +36,7 @@ add_example(ResampleAnImage)`
`36`	`36`	`compare_to_baseline(`
`37`	`37`	`EXAMPLE_NAME ResampleAnImage`
`38`	`38`	`BASELINE_PREFIX OutputBaseline`
	`39`	`+ OPTIONS --tolerance-intensity 1`
`39`	`40`	`)`
`40`	`41`
`41`	`42`	`add_example(UpsampleAnImage)`