How to rotate 3D Image/ 3D Matrix respect to its y-axis by 35 degree?

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JB B 2018 年 11 月 19 日

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https://jp.mathworks.com/matlabcentral/answers/430852-how-to-rotate-3d-image-3d-matrix-respect-to-its-y-axis-by-35-degree

コメント済み: Matt J 2018 年 11 月 20 日

Hello,

my problem is this:

I have an 3D-Image (an 176x176x200 matrix)

this matrix has to be rotated around the y-axis by an ~35° angle. Could anyone please let me know how it can be done without using image processing toolbox?

Would the following code work?

theta= 35
ry= [ cos(theta) 0 sin(theta); 0 1 0; -sin(theta) 0 cos(theta)];
for i= 0:176
newimg= ry.* img(:,i,:)
end

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Matt J 2018 年 11 月 19 日

This FEX submission claims to be able to do volume transformations without the image processing toolbox.

Matt J 2018 年 11 月 20 日

harrynecek's comment moved here:

Hello JB B. I assume you are analyzing hyperspectral data? I would like to do similar thing to my data - rotate and crop it. I have a nice script for cropping it but i have no idea how to rotate it.