MATLAB: How do i save a .tif stack of grayscale or RGB images into a 4d-array like in the “mri example” of MATLAB

Question

Hi, i want to save a stack of grayscale or RGB images, already converted to one .tif file, into a 4D-array, where the fourth value is the number of the slice, just like in the MATLAB example "mri", to do some analysis, e.g displaying 3-D Contour Slices.

I think in the example they used indexed images, so i already did this:

I = imread('D:\Images\Test\1.tif');

[D, map] = gray2ind(I,255);

imshow(D, map);

Can anybody please help? Thanks in advance.

Answer 1

Use cat(4,)

rgb4D = cat(4, rgbImage1, rgbImage2);