correlation coefficient of two images

hai

I need to calculate the correlation coefficient(scalar value) of two images A and B of same size.I tried the below mentioned code but it is not working .

A=imread('input.tif');

B=imread('output.tif');

cc=corr2(A,B)

Can anybody help please..

[Simon Silge]

Hello!

What exactly is not working? Do you get an error? What does it say?

You can try the example from the documentation: https://de.mathworks.com/help/images/ref/corr2.html

Does that work? Then maybe your images cause the problem.

Regards,

Simon

Answer 1

[KALYAN ACHARJYA]

I have tested it with my sample images, there is no issue

A=imread('11.png');  % Read any Gray Image
[r,c,ch]=size(A);    % Check sizes
B=imresize(rgb2gray(imread('13.png')),[r c]); % Read RGB>>GRAY>>Resize
cc=corr2(A,B)

I answered similar questions here earlier.

If still, it is not solved, please do attach those two images.

Hope it helps!

[Ranjit Shrestha]

What if we have more than two images? I mean a sequence of images.