[Gdal-dev] merge 3 tiff files into RGB color composite geotiff

Jeroen Ticheler Jeroen.Ticheler at fao.org
Mon Mar 7 09:30:55 EST 2005

Thanks so much! And I do not even have to buy the next product upgrade!  
Will try the suggested processes, they seem just what I need!

On 7 Mar 2005, at 15:21, Frank Warmerdam wrote:

> On Mon, 07 Mar 2005 09:22:10 +0100, Jeroen Ticheler
> <Jeroen.Ticheler at fao.org> wrote:
>> Hi Frank,
>> This worked great and I was able to see the output in OpenEV. However,
>> I was not able to see the file in Gimp or any other graphical software
>> I tried because they started complaining about unknown tags...
> Jeroen,
> Generally speaking unknown tags should be treated as, at worst, a
> warning by reading applications.
>> This
>> happened when working with MODIS data, while a similar test with ASTER
>> data didn't give the errors and the Aster image would open in these
>> programs. I assume there are some tags that geotiff supports bu  
>> confuse
>> other software!? Is there a way to remove these (export to some kind  
>> of
>> GeoTIFF minimum!?) so the images will open in (m)any graphics  
>> software?
>> Thanks again,
>> Jeroen
> You can use "tiffcp" to convert a GeoTIFF file into a plain TIFF file.
> eg.
>   tiffcp geotiff.tif plain_tif.tif
> I have also, just this morning, added a new PROFILE creation option
> to the GeoTIFF driver.  If you use PROFILE=GeoTIFF it will only add
> GeoTIFF tags, but none of the custom GDAL tags (for metadata, nodata,
> etc).  If you use PROFILE=BASELINE it will create a file without even
> GeoTIFF tags.
> Best regards,
> --  
> --------------------------------------- 
> +--------------------------------------
> I set the clouds in motion - turn up   | Frank Warmerdam,  
> warmerdam at pobox.com
> light and sound - activate the windows | http://pobox.com/~warmerdam
> and watch the world go round - Rush    | Geospatial Programmer for Rent

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