Re: [R] Image Processing packages

From: Charles Annis, P.E. <Charles.Annis_at_statisticalengineering.com>
Date: Sat 28 Jan 2006 - 02:35:43 EST


Eric:

I use R to quantify the efficacy of ultrasonic inspections of metal components (e.g. looking for nonmetallic inclusions in forgings) and use R for image processing, but my methods have been rather a kluge. I am interested in your R functions, if you will make them available. Unfortunately, making a package for CRAN is (in my opinion) WAY too hard on Windows, and I've given up, but I hope that you do not. I second Stephan Matthiesen's recent suggestion that you make your image processing functions available to fellow R users, if not on CRAN, then perhaps as ascii files from your website.

Thanks.

Charles Annis, P.E.

Charles.Annis@StatisticalEngineering.com phone: 561-352-9699
eFax: 614-455-3265
http://www.StatisticalEngineering.com  

-----Original Message-----
From: r-help-bounces@stat.math.ethz.ch
[mailto:r-help-bounces@stat.math.ethz.ch] On Behalf Of Kort, Eric Sent: Thursday, January 26, 2006 2:39 PM To: Thomas Kaliwe; r-help@stat.math.ethz.ch Subject: Re: [R] Image Processing packages

Thomas Kaliwe wrote:
> Hi,
>
> I've been looking for Image Processing packages. Thresholding, Edge
> Filters, Dct, Segmentation, Restoration. I'm aware, that Octave,
Matlab
> etc. would be a good address but then I'm missing the "statistical
> power" of R. Does anybody know of packages, projects etc. Comments on
> wether the use of R for such matters is useful are welcome.
>

See also my package rtiff for reading tiff images.

I routinely do image analysis in R. Yes, it is relatively slow compared to dedicated solutions, but I like the smooth integration with the associated statistical analysis and the ability to have a single script that performs the image analysis and multiple files and subsequent statistical analysis, and with modern computing equipment R is fast enough for my purposes.

I have a variety of standard image processing functions written in R, but have yet to distribute them because most people choose not to perform image analysis in R for the previously stated reasons.

So in general I would agree that R is sub-optimal for image processing (and this is certainly outside the realm of things R was intended to do if I read the early mailing list archives correctly). However, it can be done and it might be desirable to do so from a work-flow perspective.

-Eric

> Greetings
>
> Thomas Kaliwe

This email message, including any attachments, is for the so...{{dropped}}



R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide!
http://www.R-project.org/posting-guide.html

R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Received on Sat Jan 28 02:59:48 2006

This archive was generated by hypermail 2.1.8 : Fri 03 Mar 2006 - 03:42:14 EST