Help Getting Images into Montage from a Cell Array

I have a loop that pulls 2D images out of a 3D matrix and puts them in a cell vector. I then want to take those images and use the 'montage' function so that I can put them all together. So far it works up until I get to montage. I can get the images into the cell array, but I am having a very difficult time figuring out how to get them out of the cell array in a way that I can put them into montage without selecting each and every one. There are 40 of them so that is not something I want to do. Here is my code so far:

data_group1_mouse116 = load('Mouse116CT.mat');

Matrix = permute(data_group1_mouse116.preImg,[2,3,1]);

Size_Matrix = size(Matrix); height = Size_Matrix(3); cell_info = floor(height./40);

n = 1; s = 1; x = 1;

while s <= 40

%rotating data with transpose and imaging slices pre_slice{s} = transpose(Matrix(:,:,n));

s = s + 1; n = n + cell_info;

end

while x <= 1;

    pre_slice{x};

    x = x + 1;

end

Image = montage(('trial.m'));

%cell2mat(pre_slice)

%setting image parameters colormap(gray) colorbar caxis([0,2.5*10^4]) axis equal tight

Answer 1

[Image Analyst]

You need to pass montage() a 3D or 4D array of images, not a string.

Also, don't use Image as the name of a variable since image is the name of a built-in function.

[Mara Lanis]

Okay. So you are saying that all I need to do is turn my 2D images back into a 3D matrix and then put it through montage?

[Image Analyst]

This is what MATLAB help says

montage(I) displays all the frames of a multiframe image array I in a single image object. I can be a sequence of binary, grayscale, or truecolor images. A binary or grayscale image sequence must be an M-by-N-by-1-by-K array. A truecolor image sequence must be an M-by-N-by-3-by-K array.

montage(X, map) displays all the frames of the indexed image array X, using the colormap map for all frames. X is an M-by-N-by-1-by-K array.

[Mara Lanis]

I'm sorry, but what is an M by N by 1 by K array?

[Mara Lanis]

Nevermind, I got it. THANK YOU SO MUCH!