[R] clipping a large image on R

From: Milton Cezar Ribeiro <milton_ruser_at_yahoo.com.br>
Date: Fri, 11 Jan 2008 08:15:23 -0800 (PST)


Dear all,

I have a so large image (43,000 x 18,000 pixels) and I need clip this image with a smallest one (1000x1000 pixels). I can read the second image using rgdal package. But the first image canĀ“t be read on my system because if memory limitation (I have about 2GB availabe).

So I would like hear from you if anyone have some suggestin in this regards. I have also ArcGis 8.6 ans Erdas 8.3 running on my system and I can read the largest file without problem. But I dont know how clip the large image to keep only those pixels that math to he smallest image coordinates.

kind regards, miltinho

 para armazenamento!

        [[alternative HTML version deleted]]



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 Fri 11 Jan 2008 - 16:29:40 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 Fri 11 Jan 2008 - 18:30:05 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