How to rotate an 3D-image / 3D-Matrix

Hello,

my problem is this:

I have an 3D-Image (an 200x200x50 matrix)

this matrix has to be rotatet around the x-axis by an ~175° angle. The exact angle I will have to decide later on. The only code I found was "Imrotate", but that only works for 2D-Images.

Thank you very much Florian

Answer 1

[Matt J]

IMROTATE will work on 3D images. It will operate on every 2D slice A(:,:,i), rotating it about the z-axis. You can use permute() to align the x-axis with the z-axis and ipermute() to revert back again.

Answer 2

[Alex Taylor]

Look at the second example of the documentation for IMWARP:

http://www.mathworks.com/help/images/ref/imwarp.html

You can phrase a rotation using a 3-d affine transformation, and apply this transformation with imwarp.