Sorry, I missed that is supposed to be a labelmap visualized, in that case you need to define a lookup table of coloring based on your labelimage and apply it to the volume through vtkImageMapToColors()
The examples here would certainly help :
Sorry, I missed that is supposed to be a labelmap visualized, in that case you need to define a lookup table of coloring based on your labelimage and apply it to the volume through vtkImageMapToColors()
The examples here would certainly help :