Interpolate 1 array to another

Hello,

I want to interpolate a 5x9000 numeric array onto a 2000x3000 numeric array.

Other words, I want both arrays the same size.

What code is easiest for this?

Answer 1

[Image Analyst]

If you have the Image Processsing Toolbox, use imresize():

array1NewSize = imresize(array1, size(array2));

Answer 2

[Akira Agata]

If you don't have the Image Processing Toolbox, interp2 would be your friend, like:

% assuming array1 is a 5x9000 numeric array
[xGrid, yGrid] = meshgrid(linspace(0,1,9000),linspace(0,1,5));
[xGrid2, yGrid2] = meshgrid(linspace(0,1,3000),linspace(0,1,2000));

array1NewSize = interp2(xGrid,yGrid,array1,xGrid2,yGrid2);