Resize N-D arrays and images

version 1.3.0.0 (6.42 KB) by Damien Garcia
Y = RESIZE(X,newsize) resizes input array X using a discrete cosine transform.

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Updated 12 Oct 2014

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Y = RESIZE(X,NEWSIZE) resizes input array X using a DCT (discrete cosine transform) method. X can be any array of any size. Output Y is of size NEWSIZE.
Input and output formats: Y has the same class as X.
As an example, if you want to multiply the size of an RGB image by a factor N, use the following syntax:
newsize = size(I).*[N N 1];
J = resize(I,newsize);

------
% Upsample and stretch an RGB image
I = imread('onion.png');
sizeJ = size(I).*[2 2 1];
J = resize(I,sizeJ);
sizeK = size(I).*[1/2 2 1];
K = resize(I,sizeK);
figure,imshow(I),figure,imshow(J),figure,imshow(K)

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Enter "help resize" to obtain other examples.

Cite As

Damien Garcia (2022). Resize N-D arrays and images (https://www.mathworks.com/matlabcentral/fileexchange/26385-resize-n-d-arrays-and-images), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2010b
Compatible with any release
Platform Compatibility
Windows macOS Linux

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