Re: Vectorized version of nlfilter

[Tony Richardson]

On Sat, Jul 18, 2020, 10:57 PM Kai Torben Ohlhus <k.ohlhus@gmail.com> wrote:

On 7/19/20 3:31 AM, Tony Richardson wrote:
> OK.  I've cleaned up my alternate version of colfilt a bit.  It allows
> for neighborhood processing of only selected pixels instead of all
> pixels.  Neighbors can be specified by row and column offsets instead of
> using all neighbors in a rectangular region.  (This can result in less
> memory usage than colfilt if only a few neighbors of a percentage of the
> pixels in an image are to be processed.)  I would guess that it could be
> faster too (although probably not significantly so), but I haven't tried
> to measure that.
>
> Tony

Thank you Tony, for your image package [1] contribution.  This
mailing-list is intended for users of Octave to get help.  Code
contributions are better suited for the patch tracker [2] and are easily
forgotten on the mailing list.  Was it possible to upload your file there?

Kai

[1] https://octave.sourceforge.io/list_functions.php?q=nlfilter&sort=package
[2] https://savannah.gnu.org/patch/?func=additem&group=octave

Yes, I'll do that.

Tony