Hi Solimyr,<br>could you run a "gdalinfo -stats" on your input GTiff to let us better understand the characteristics of the image to be converted?<br><br>Regards,<br>Daniele<br><br><div class="gmail_quote">On Thu, Jun 30, 2011 at 3:31 PM, Gianni Cristian <span dir="ltr"><<a href="mailto:giannicristian@msn.com">giannicristian@msn.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">Hi guys,<br>
I need to convert an image from GTiff to ENVI format. I want also that my<br>
image is in Grayscale. The GTiff image have just one band. If I do with<br>
ENVI, I save the file as Image, ENVI 8-bit (I call this results fromENVI).<br>
When I try to do the same with gdal_translate I do:<br>
<br>
gdal_translate -of ENVI -ot Byte gtiffimg.tif fromgdal.raw<br>
<br>
But the result is a lot different from the 'fromENVI' image. So I have tried<br>
to do:<br>
<br>
<br>
gdal_translate -of ENVI -ot Byte -b 1 -expand gray gtiffimg.tif fromgdal.raw<br>
<br>
and<br>
<br>
<br>
gdal_translate -of ENVI -ot Byte -expand gray gtiffimg.tif fromgdal.raw<br>
<br>
But I get the following error:<br>
<br>
Input file size is 1828, 1646<br>
Error : band 1 has no color table<br>
<br>
I wrong something or is gdal fault?<br>
<br>
Thx<br>
<br>
Solimyr<br>
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</font></blockquote></div><br><br clear="all"><br>-- <br>-------------------------------------------------------<br>Ing. Daniele Romagnoli <br>
GeoSolutions S.A.S.<br>
Software Engineer<br>
<br>
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<br>
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<br><br>-------------------------------------------------------<br><br>