Re: [R] Asking Favor For the Script of Median Filter

From: Mike Marchywka <marchywka_at_hotmail.com>
Date: Sun, 27 Mar 2011 20:49:02 -0400



> CC: chuan_zl_at_hotmail.com; r-help_at_r-project.org
> From: dwinsemius_at_comcast.net
> To: marchywka_at_hotmail.com
> Subject: Re: [R] Asking Favor For the Script of Median Filter
> Date: Sun, 27 Mar 2011 18:30:48 -0400
>
>
> On Mar 27, 2011, at 1:07 PM, Mike Marchywka wrote:
>
> > You obviously want to delegate inner loops to R packages that
> > execute as native, hopefully optimized, code.
> > Generally a google search that starts with "R CRAN" will help.
> > In this case it looks like a few packages available,
> >>
> > http://www.google.com/search?sclient=psy&hl=en&q=R+cran+median+filter
>
> Did you find any that include a 2D median filter? All the ones I
> looked at were for univariate data.

I put almost zero thought or effort into that but an interested party could modify the words a bit and and, for example "image" and one of the first interesting hits is this,

http://cran.r-project.org/web/packages/biOps/biOps.pdf

x <- readJpeg(system.file("samples", "violet.jpg", package="biOps")) y <- imgBlockMedianFilter(x, 5)

>
> --
> David.
                                               



R-help_at_r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. Received on Mon 28 Mar 2011 - 00:51:51 GMT

Archive maintained by Robert King, hosted by the discipline of statistics at the University of Newcastle, Australia.
Archive generated by hypermail 2.2.0, at Mon 28 Mar 2011 - 01:00:25 GMT.

Mailing list information is available at https://stat.ethz.ch/mailman/listinfo/r-help. Please read the posting guide before posting to the list.

list of date sections of archive