[vtkusers] vtkImageMathematics (Add operation)

[matheus_viana]

Hi Folks,

I'm trying to sum two ImageDatas, but I'm getting a blank image as result.
This is my code:

	vtkImageCast *cast = vtkImageCast::New();
	cast -> SetInput(ImageData);
	cast -> SetOutputScalarTypeToDouble();
	cast -> Update();

	vtkImageGaussianSmooth *Gauss = vtkImageGaussianSmooth::New();
	Gauss -> ReleaseDataFlagOff();
	Gauss -> SetInput(cast -> GetOutput());
	Gauss -> SetDimensionality(3);
	Gauss -> SetRadiusFactors(1,1,1);
	Gauss -> SetStandardDeviations(1,1,1);
	Gauss -> Update();

	vtkImageVariance3D *Variance  = vtkImageVariance3D::New();
	Variance -> SetInput(cast->GetOutput());
	Variance -> SetKernelSize(3,3,3);
	Variance -> Update();

	vtkImageMathematics *mat = vtkImageMathematics::New();
	mat -> SetOperationToAdd();
	mat -> SetInput1(Gauss->GetOutput());
	mat -> SetInput2(Variance->GetOutput());
	mat -> Update();

You guys have any idea?



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