[gdal-dev] [GDAL_TRANSLATE] Gray scale

[Daniele Romagnoli]

Hi Solimyr,
could you run a "gdalinfo -stats" on your input GTiff to let us better
understand the characteristics of the image to be converted?

Regards,
Daniele

On Thu, Jun 30, 2011 at 3:31 PM, Gianni Cristian <giannicristian at msn.com>wrote:

> Hi guys,
> I need to convert an image from GTiff to ENVI format. I want also that my
> image is in Grayscale. The GTiff image have just one band. If I do with
> ENVI, I save the file as Image, ENVI 8-bit (I call this results fromENVI).
> When I try to do the same with gdal_translate I do:
>
> gdal_translate -of ENVI -ot Byte gtiffimg.tif fromgdal.raw
>
> But the result is a lot different from the 'fromENVI' image. So I have
> tried
> to do:
>
>
> gdal_translate -of ENVI -ot Byte -b 1 -expand gray gtiffimg.tif
> fromgdal.raw
>
> and
>
>
> gdal_translate -of ENVI -ot Byte -expand gray gtiffimg.tif fromgdal.raw
>
> But I get the following error:
>
> Input file size is 1828, 1646
> Error : band 1 has no color table
>
> I wrong something or is gdal fault?
>
> Thx
>
> Solimyr
>
>
> --
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-- 
-------------------------------------------------------
Ing. Daniele Romagnoli
GeoSolutions S.A.S.
Software Engineer

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