Reducing array size, discarding data

I am trying to reduce the size of an array and discard any data that happens to fall out of the new bounds.

I currently have a loop where 'Array' is an array of larger size then 'Array_Temp'

    for w=1:W
        for h=1:H
            Array_Temp(w,h) = Array(w,h);
        end
    end
    newArray(:,:,k) = myArrayPart_temp;

I am wondering if there is a better way to do this as going through each element one by one is very slow!

[KSSV]

discard any data that happens to fall out of the new bounds

This may not keep your matrix intact. Are you okay with that? You want to remove the entire row/ column?

Answer 1

[DGM]

No need for loops. Assuming these are mxnxk arrays:

childarray=parentarray(1:H, 1:W, :);

Or if you don't want to start in the corner:

childarray=parentarray(startrow:endrow, startcol:endcol, :);

You could also use imcrop(), though that's a bit frustrating to use in my opinion.

[Ben Twill]

Thanks, thats works!