MATLAB: How can we slide say a 3X3 window on a matrix and perform an operation (i.e. Sum) on the 3X3 window, and then move that 3X3 window to the next part until we reach the end of the matrix? Thanks.

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How can we slide say a 3X3 window on a matrix and perform an operation (i.e. Sum) on the 3X3 window, and then move that 3X3 window to the next part until we reach the end of the matrix? Thanks. i have a program of 2X2 but i went 3, thanks.

Best Answer

  • You can use conv2():
    blurredImage = conv2(double(grayImage), ones(3), 'same');
    imshow(blurredImage, []);
    You could also use imfilter(). Use ones(3)/9 if you want the average instead of the sum.