I think the way to do this is with gdalwarp. Use the -tr (target resolution) parameter and -r (resampling method) to get the resolution you want.

On 19/09/2012 23:04, Chris Henrick wrote:
Hello, I've read in the gdal wiki that there is the potential to downsample a dem when using gdal_translate. However I cannot figure out what parameters to set in order to do so if running the command from either QGIS or shell. 

My goal is to downsample dems to make more generalized shaded reliefs.

Any advice would be appreciated, I'm on mac os 10.6 with qgis 1.8.

regards,

-Chris

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