find mutual information between images

hi every body

i have written a code to find the mutual information between one fixe image called 'X' and 33 images called 'Y'. (i have downloaded the MI_GG from https://ch.mathworks.com/matlabcentral/fileexchange/36538-very-fast-mutual-information-betweentwo-images)

but the answer of my code is only one, but it should be 33 values.

how should i change the code?

clc

clear all

close all

surf_read_dir='E:\phd\zahra taati\CT-4chamber\for\x00_68\croped\';

files=dir('E:\phd\zahra taati\CT-4chamber\for\x00_68\croped\*.jpg');

X = rgb2gray(imread('echo.jpg'));

sz=size(X);

for im=1:size(files)

fdir = strcat(surf_read_dir , files(im).name);

slice_im = load(fdir);

Y = rgb2gray(imread(fdir));

YY = imresize(Y,sz);

M = MI_GG(X,YY);

end

Answer 1

[sourav malla]

You can get useful help from here regarding comparing the features between 2 images:

https://www.mathworks.com/help/vision/ug/use-lbp-features-to-differentiate-images-by-their-texture.html?searchHighlight=compare%202%20images&s_tid=doc_srchtitle

[talayeh ghodsi]

thanks for your answer. is there any solution of that to use between 2D image and 3D volume instead od 2D-2D?