[gdal-dev] how to create just the msk file from a rgba vrt file

[Brian Case]

Duarte


gdaltranslate -of outfrmt -b 1 -b 2 -b 3 -mask 4 infile outfile 

brian

you can output to vrt's
just dont try to mosaic masked or aphad files with vrts

brian

On Thu, 2014-02-06 at 13:20 +0000, Duarte Carreira wrote:
> Hi there.
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>  
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> Continuing with trying to cut processing times, I am trying to get a
> msk file from a vrt mosaic, without converting the entire vrt to tif
> just to get the msk file.
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> In other words, how can we create a msk file from the alpha band
> without rewriting the whole image?
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> 
> Thanks again.
> 
> Duarte
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> Duarte Carreira
> Diretor | Dep. Informação Geográfica e Cartografia
> 
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> www.edia.pt
> 
> www.alqueva.com.pt
> Tel. +351 284315100
> 
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