How to perform algebraic operations on an hyper stack image?

I have sets of images in folders A,B, ... containing images of dimension (n x m).

How do I group the images and then perform one operation to get outputs A',B',.. where A' = (A-X)/X [X is another image of dimensions (n x m)]

Answer 1

[Yuvraj Singh]

Hi,

Below mentioned code takes all the files from a folder and save it to a matrix for matrix opeartion.

%chanage directory to the folder of your interest
cd /path_to_folder_of_interest
%lists all files/folders in the diretory 
x = dir;
%iteerate over all files/folders inside a folder
for idx =  1:numel(x)
    element = x(idx);
    %checks if its not a directoey it will read from excel file and make it
    %a matric for operation
    if(~element.isdir)
        if(exist("A","var"))
            A = [A;table2array(readtable(element.name))];
        else
            A = table2array(readtable(element.name));
        end
    end
end

A1 = (A-X)/X;

It assumes all the file are excel files in the folder.

[ct8]

Thanks it worked!