I was wondering if anybody had implemented a 3D convex hull in KNIME? I would like to measure foci distances from the periphery of a nucleus.
A 2D convex hull already has a node which works very nicely (I’ve implemented in an example workflow here) and it’s possible to generate some points with connected component analysis after the binary hull image is generated.
3D is another issue though. I can certainly process stack with each slice as 2D convex hull but this isn’t really a real 3D hull (see what I’ve done here in the second example). @stelfrich suggested ImageJ Ops which would require using scijava to call the command.
So I was wondering if anybody had already done this or had some advice on how best to approach it.