How to save the FFt results of an image in an array?

Hello,

Please can you help me saving the result of the Fast Fourier Transform of an image so I can reuse it to draw the bessel function?

My code below, gives this error :

In an assignment A(:) = B, the number of elements in A and B must be the same.

Error in essai (line 13)

stored_values(ii) = Y;

clc;
close all;
imagefiles = dir('*.jpg');
nfiles = length(imagefiles);    % Number of image files found
stored_values = zeros(nfiles,4); % Preallocate the array for saving the values

for ii=1:nfiles

    currentfilename = imagefiles(ii).name;
    I = imread(currentfilename);
    myimage = rgb2gray(I); % Convert image to gray
    Y = fft2(double(myimage))
    stored_values(ii) = Y; 
    imagesc(abs(fftshift(Y)));
end

And if I change this line

    stored_values(ii) = Y; 

to this

    stored_values(ii,1) = Y; 

it gives this error:

Assignment has more non-singleton rhs dimensions than non-singleton subscripts

Error in essai (line 13)

stored_values(ii,1) = Y;

Please can anyone correct it for me?

Thank you.

Answer 1

[madhan ravi]

stored_values = cell(1,nfiles); %before loop

stored_values{ii}=Y; %inside loop

celldisp(stored_values) %outside loop

[stored_values{:}] %double values

[Nour Sd]

Thank you for your answer but I tried it and It gaves this error:

Subscripted assignment dimension mismatch.

Error in essai (line 13)

stored_values(ii,:) = Y;

[madhan ravi]

see edited answer

[Nour Sd]

Yes thank you it's running without error now but how can I reuse the stored proper coeffecients for every band of wave to calculate the bessel potantial of the function?

Thank you for you precious help!

[madhan ravi]

Anytime :) . To be honest I don't have any experience with what you are asking sorry.

[Nour Sd]

Okay, thank you a lot! :)

[madhan ravi]

You are welcome :)