MATLAB Answers

How can we plot the correlation

16 views (last 30 days)
How can we plot the correlation between pixels in two images, the first clear and the other containing noise, or correlation between the samples in two sound signals?
Is there a tool in Matlab or a function that achieves this purpose?

Accepted Answer

Bjorn Gustavsson
Bjorn Gustavsson on 14 Sep 2021
It seems that you ask for the corrcoef. If you look at the correlation between 2 signals you will simly get a 2-by-2 matrix which seems to be a bit small to plot as an image, but you can do something like this (for your 2 images case);
corrI1I2 = corrcoef([I1(:),I2(:)]);
imagesc(corrI1I2)
Or possibly:
plotmatrix([I1(:),I2(:)])
HTH
  4 Comments

Sign in to comment.

More Answers (0)

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!