How to find the argmax value of multiple images

I have multiple images. First I want to find the correlation between each images like image 1 and image2 then image2 and image3 then to add offset by finding the location of the maximum correlation value following the below equation:

Basically I want to follow the algorithm attached as correlation1 . And I want to perform this procedure between each pair of consecutive frames for the entire sequence. My code is given below:

close all;clc; 
% read all images from your folder and making them of same dimension 
myFolder = 'folder path'; 
filePattern = fullfile(myFolder, '*.jpg');% change the extension according to your file extension 
jpgFiles = dir(filePattern); 
for k = 1:length(jpgFiles) 
  baseFileName = jpgFiles(k).name; 
  fullFileName = fullfile(myFolder, baseFileName); 
  fprintf(1, 'Now reading %s\n', fullFileName); 
  temp = double(imread(fullFileName)); 
  [r,c,d]=size(temp); 
  if d==3 
     temp=rgb2gray(temp); 
  end 
  if r~=256 && c~=256 
     temp=imresize(temp,[256,256],'bicubic'); 
  end 
  imageArray{k} =temp; 
end 
% calculate correlation for every image combinations 
for i=1:size(imageArray,2) 
    for j=1:size(imageArray,2) 
        corr_cell{i,j}=normxcorr2(imageArray{i},imageArray{j});
        [argvalue, argmax] = max(corr_cell{i,j});
        
  end 
end 

Suppose we have 11 images so after this we are supposed to get 10 independent array of argvalue and 10 independent array of argmax. But only two vectors are obtained here only. Kindly help

Answer 1

[Image Analyst]

corr_cell{i,j} is an image. Thus max() will give the max of each column in the image, not the max of the entire image. You'd either have to use (:)

thisImage = normxcorr2(imageArray{i},imageArray{j});
corr_cell{i,j} = thisImage;
[maxValue, indexOfMax] = max(thisImage(:));
maxValues(i, j) = maxValue;

or use the 'all' option (if you have a fairly recent version of MATLAB).

thisImage = normxcorr2(imageArray{i},imageArray{j});
corr_cell{i,j} = thisImage;
[maxValue, indexOfMax] = max(thisImage, 'all');
maxValues(i, j) = maxValue;

to get the max of the entire matrix.

[Vaswati Biswas]

Thank you so much