Help! I don't know if this is an obvious question, but I have been
searching the Grass manual and can't find an answer - I have large raster
images and want to extract smaller ones from them for the purpose of
supervised classification. How do I do this? I have the coords of the
smaller images I want. Defining smaller regions doesn't help, since
i.class doesn't take a region name, it simply loads the entire image !
Please help.... I don't want to export to IDRISI, then extract, and then
reimport, as that would take rtoo much time.
Thanks a lot
Harini------------------------------------------------------------------------
| Harini Nagendra E-MAIL : harini@ces.iisc.ernet.in |
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The trick is to save the zoomed image as a new raster file. So, first specify
your new region, then use r.resample to obtain a new image. Good luck!
Philip Verhagen
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