wcs data preparation - conversion from Unsigned to Signed Int

[Frank Warmerdam]

Nuno GIL wrote:
> Hi listers,
>
> I have converted some SRTM (.hgt) files in 16-bit
> signed int to GeoTiff 16-bit unsigned int.
> Does any of you know any way of converting a 16-bit
> unsigned GeoTIFF in a 16-bit signed one?
>
> Regards,
> Nuno


Nuno,

You can use gdal_translate to convert data types.  For instance:

  gdal_translate -ot UInt16 in.tif out.tif

Note that by default gdal_translate will just truncate values, so any
value less than zero will be mapped to zero going through the above
transformation.

Best regards,
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I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
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