void TestRemoveLabels()
{
mitk::Image::Pointer image =
dynamic_cast<mitk::Image*>(mitk::IOUtil::Load(GetTestDataFilePath("Multilabel/LabelSetTestInitializeImage.nrrd"))[0].GetPointer());
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("Labels with value 1 and 3 was not remove from the image",
m_LabelSetImage->GetStatistics()->GetScalarValue2ndMin() == 1);
CPPUNIT_ASSERT_MESSAGE("Label with value 7 was not remove from the image",
m_LabelSetImage->GetStatistics()->GetScalarValueMax() == 7);
CPPUNIT_ASSERT_MESSAGE("Label with ID 3 does not exists after initialization",
m_LabelSetImage->ExistLabel(3) == true);
CPPUNIT_ASSERT_MESSAGE("Label with ID 7 does not exists after initialization",
m_LabelSetImage->ExistLabel(7) == true);
std::vector<mitk::Label::PixelType> labelsToBeRemoved;
labelsToBeRemoved.push_back(1);
labelsToBeRemoved.push_back(3);
labelsToBeRemoved.push_back(7);
m_LabelSetImage->RemoveLabels(labelsToBeRemoved);
CPPUNIT_ASSERT_MESSAGE("Wrong number of labels after some have been removed",
m_LabelSetImage->GetNumberOfLabels() == 3);
// Values within the image are 0, 1, 3, 5, 6, 7 - New Min/Max value should be 5 / 6
// 2ndMin because of the exterior label = 0
CPPUNIT_ASSERT_MESSAGE("Labels with value 1 and 3 was not remove from the image",
m_LabelSetImage->GetStatistics()->GetScalarValue2ndMin() == 5);
CPPUNIT_ASSERT_MESSAGE("Label with value 7 was not remove from the image",
m_LabelSetImage->GetStatistics()->GetScalarValueMax() == 6);
}
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);
}