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How do I copy a 320x240 matrix into a 640x480 matrix and expand everything 200%?

Asked by Raymond on 26 Jun 2013

Hi, For various reasons I need to use a 320x240 matrix (call it A) to compute it's element values, but then I need a 640x480 matrix (call it B) in which each element of A is twice as large in B. Thus A(1,1) will go to B(1:2,1:2), etc...

Is there a "fast" way to simply say "double the size of this matrix"?

Thanks, Ray

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Raymond

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1 Answer

Answer by Andrei Bobrov on 26 Jun 2013
Accepted answer
B = kron(A,ones(2));

1 Comment

Raymond on 26 Jun 2013

Thanks!

Andrei Bobrov

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