Adding a frame of zeros to a matrix

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Rashid Hussein
Rashid Hussein 2019-4-4
评论： Guillaume 2019-4-4
I have a matrix 19x9 I want to add a frame of zeros so I will be 20x10 ?????

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Guillaume
Guillaume 2019-4-4
Not sure which corner you want to pad with zeros. I'm assuming bottom right:
newmatrix = [yourmatrix, zeros(size(yourmatrix, 1), 1); zeros(1, size(yourmatrix, 2) + 1)];
If you have the image processing toolbox:
newmatrix = padarray(yourmatrix, [1 1], 'direction', 'post');
  2 个评论
Rashid Hussein
Rashid Hussein 2019-4-4
Actually I want to add the zeros as frame for all corners So the original matrix would be surrendered by zeros like square
Guillaume
Guillaume 2019-4-4
newmatrix = [zeros(1, size(yourmatrix, 2) + 2); zeros(size(yourmatrix, 1), 1), yourmatrix, zeros(size(yourmatrix, 1), 1); zeros(1, size(yourmatrix, 2) + 2)];
Using padarray:
newmatrix = padarray(yourmatrix, [1 1]);

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