[vtkusers] How to generate X-Ray Projection

[paulus joo]

Hi de Boer Ingo and VTK users.

Many thanks for helping me at VTK (in my previous question). Now I can do surface rendering and volume rendering of my own CT data set, adding control button to navigate it. I will share the code of this modules (MFC based) if any of vtk users need it. 

But also I want to ask another questions.I have two questions related to volume rendering with VTK.
1. I want to generate X-Ray 2D image from the 3D volume. Some articles on the internet mention that MIP projection can produce image look likes X-Ray image, and some articles mention about "average intensity projection" should be used to obtain X-Ray image. Which one (or both) was wrong?
2. How can I save the projection (at 6 planes of the cube) obtained in question 1 into image files?

Many thanks in advance


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