void TestMergeLabel() { mitk::Image::Pointer image = dynamic_cast<mitk::Image*>(mitk::IOUtil::Load(GetTestDataFilePath("Multilabel/LabelSetTestInitializeImage.nrrd"))[0].GetPointer()); m_LabelSetImage = 0; m_LabelSetImage = mitk::LabelSetImage::New(); m_LabelSetImage->InitializeByLabeledImage(image); CPPUNIT_ASSERT_MESSAGE("Image - number of labels is not 6", m_LabelSetImage->GetNumberOfLabels() == 6); // 2ndMin because of the exterior label = 0 CPPUNIT_ASSERT_MESSAGE("Wrong MIN value", m_LabelSetImage->GetStatistics()->GetScalarValueMin() == 0); CPPUNIT_ASSERT_MESSAGE("Wrong MAX value", m_LabelSetImage->GetStatistics()->GetScalarValueMax() == 7); m_LabelSetImage->GetActiveLabelSet()->SetActiveLabel(6); // Merge label 7 with label 0. Result should be that label 7 is not present any more m_LabelSetImage->MergeLabel(6, 7); CPPUNIT_ASSERT_MESSAGE("Label with value 7 was not remove from the image", m_LabelSetImage->GetStatistics()->GetScalarValueMax() == 6); m_LabelSetImage->GetStatistics()->GetScalarValue2ndMax(); // Count all pixels with value 7 = 823 // Count all pixels with value 6 = 507 // Check if merge label has 507 + 823 = 1330 pixels CPPUNIT_ASSERT_MESSAGE("Label with value 7 was not remove from the image", m_LabelSetImage->GetStatistics()->GetCountOfMaxValuedVoxels() == 1330); }