As the topic came up in D338#inline-3026 I want to discuss the meaning of 2D images (and especially 2D segmentation).
- What does 2D actually mean in MITK? 3D with one slice in the third dimension? Real 2D with only two dimensions?
- Is it mixed in the code base?
- Do we always need to check if there is a third dimension, if we only want to handle "real" 3D and 4D images?
- Do our algorithms support real 2D images?