Extracting 2D image from 3D volume data set

Hello,

I have 3D data set (M x N x P), and i need to extract irregular (not parallel) 2D planes (cross-sections). And show it as an image. Maybe somebody tried this before?

Answer 1

[Sean de Wolski]

perhaps

 doc slice

If you actually want the data in a 2d matrix: define the plane as a function, let's call it S, through the volume and then extract it:

 S = ao + a1x + a2y + a3z;

Define the parameters a0-3 and then define all of the indices that correspond to this plane within the bounds of the volume and use

 meshgrid or ndgrid

to generate a full list of sub-indices. Convert them to linear indices using

 sub2ind

and extract the information. Or, if memory isn't an issue, you can just define a logical volume with the only true values being the ones on the plane defined by the constraints of your plane function.

[Will]

did you figure it out? i've been trying and don't know how to do this. I have the mesh and the plane equation. but can't figure it out after that. please help.

Answer 2

[Andrius]

Thanks a lot :)

[Will]

did you figure it out? i've been trying and don't know how to do this. I have the mesh and the plane equation. but can't figure it out after that. please help.