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| GeoCommunity Mailing List |
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| Mailing List Archives |
| Subject: | Re: GISList: Seeking raster "stacker" |
| Date: |
03/27/2003 08:50:00 AM |
| From: |
Allan Doyle |
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On Thursday, March 27 2003 at 09:57:30(+0300) Mick Wilson wrote:
> Not strictly a 'geo'-data query but I figure this group is most familiar
> with the nature of the task and possible solutions:
>
> I have a 'stack' of like-sized Landsat raster images over a particular
> water reservoir in Australia. I wish to crop these so that they are
> commonly-coregistered to facilitate changes in water level over time. The
> images are offest by differing numbers of rows and columns from any
> arbitrary reference image that I select. I do not wish to simply 'grab and
> move' in a tool like PhotoShop the images so that they align but rather add
> or delete rows and columns to the actual images files so that row 1, column
> 1 of each image corresponds to the same pixel on the ground. No the images
> are not geo-referenced or projected.
>
> So: anyone know of a (public domain) tool that could help here? Failing
> that, does anyone know of a tool for manually adding/removing a defined
> number of rows/columns from a raster?
Mick,
Netpbm will let you add/delete rows/columns. Trouble is, it might be a
bit involved in getting it running on a Windows machine if you're not
already familiar with the Cygwin tools.
http://netpbm.sourceforge.net/
http://www.cygwin.com/
Allan
--
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Allan Doyle http://www.intl-interfaces.com
+1.781.433.2695 (Office) adoyle@intl-interfaces.com
+1.781.634.0421 (FAX)
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