Converting a stack of .bmp images into an .stl file

I have a large set of images taken by a micro-CT scanner that I am trying to convert to an STL file. Does anybody have an idea of how to do this on Matlab? If not, does anyone know of any software that I could use to do this? I know of ImageJ but I can't seem to get that to work.

Answer 1

[Anton Semechko]

(1) Segment the object of interest in your 3D image,

(2) Reconstruct boundary of the segmented object using 'isosurface' function,

(3) Download 'stl_write' function from FEX

(4) Export mesh from (2) using 'stl_write'

[DGM]

This example refers to Sven's stlwrite() from FEX #20922 or #51200, though after R2018b, the same can be done using MATLAB's built-in stlwrite()

https://www.mathworks.com/matlabcentral/fileexchange/20922

https://www.mathworks.com/matlabcentral/fileexchange/51200

built-in stlwrite()

#20922 expects F,V lists to either be provided together as a struct or as separate numeric arguments.

R2018b stlwrite() expects the data to be presented as a triangulation object.

For example:

https://www.mathworks.com/matlabcentral/answers/2035354-converting-matlab-isosurface-into-triangulation-object-for-stl-export