Best way to overlay multiple 2D images?

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1

Hi, I’m interested in making overlays of two or more 2D images in VTK (e.g., two MRIs taken multiple years apart). There appear to be two ways of doing this in VTK:

  1. via vtkImageBlend (https://itk.org/Wiki/VTK/Examples/Cxx/Images/CombineImages)
  2. via vtkImageStack (https://vtk.org/Wiki/VTK/Examples/Cxx/Images/ImageStack)

Can anyone tell me what the pros/cons of the two methods are?
thank you in advance for your assistance,
-Merps

2

You’ve asked the same last year and even got an answer: vtkImageStack vs. vtkImageBlend

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3

Ack!!! Thank you @Andras. Honestly, I checked my discourse history before and didn’t see it. It also didn’t come up when I searched discourse with the keyword “overlay”. My apologies.
-M