[Octave-bug-tracker] [bug #61754] Bicubic interpolation in interp2() incompatible with Matlab

[Rik]

Follow-up Comment #13, bug #61754 (project octave):

I made a few small changes to follow Octave coding conventions here
(http://hg.savannah.gnu.org/hgweb/octave/rev/95ee9b9605cc).

I did a minimal check on performance with


z = rand (1e3, 1e3);
tic; zi = interp2 (z, 2, "cubic"); toc


Result was 0.8 seconds.  Seems fine for me, but I don't know what size
datasets people usually use.  I think I did notice a for loop which might be
slow.  Since there is a kernel being applied would conv2() or filter2() be
faster alternatives?


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