CODEWITHSUNDEEP
image-processingmatlabmatlab-figure
Aneps
Aneps

Reputation: 133

Center the image in Matlab

I have an image (intensity plot) a nxn square matrix. On the image, I want to choose a point and center the image to that point (to make that point as the center of the image). How can I do that in Matlab?

Also, how can I choose a region (an elliptical) and exclude all the data (intensity points) outside that region?

Upvotes: 0

Views: 1189

Answers (1)

Kostya
Kostya

Reputation: 1572

Assuming periodic boundary conditions, you can center the image a like this

clear all;
N = 11; a = randi(N^2,N,N);

c = floor([median(1:N) median(1:N)]); %old center
nc = [3 9]; %new center
na = circshift(a, c - newc);

Upvotes: -1

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