Hi Luis, I am not sure if QGIS has built in orthorecitification functionality (perhaps there is a plugin you can use?). There is however a other open source software package called OTB which I am sure has orthorectification functionality ( http://www.orfeo-toolbox.org/SoftwareGuide/SoftwareGuidech11.html)
I know that there is an OTB plugin for QGIS but am not sure what it allows you to do as I have not made use of it yet. With regards to a DEM, your first point of call is the CGIAR version 4 Shuttle Radar Topography DEM available here (http://srtm.csi.cgiar.org/), remember however that this product has a spatial resolution of 90 meters so if you are using very high resolution data you may want to generate your own DEM or at least use one provided by your national mapping agency. Hope this helps, Wesley On Wed, Oct 17, 2012 at 12:15 PM, Luis Lisboa <[email protected]>wrote: > Greetings, > > I have used QGIS for displauying and visualization but now I will need to > orthorectify a few satellite images. My question is: is there any QGIS > function for this? If Yes, where can I find it? > And, additionally, does it already include a DEM product? > > Thank you > Luis > > > _______________________________________________ > Qgis-user mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/qgis-user > > -- Dr Wesley Roberts [email protected] Cell: 083 5355 646 Work: 021 - 888 2490 skype: roberts-w
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