[gdal-dev] gdal_translate syntax input separate R, G, B output combined RGB

Frank Warmerdam warmerdam at pobox.com
Sun Jan 11 01:42:22 EST 2009


Yes, this method would certainly work!  My private suggestion
to Greg was that he use the gdal_merge.py script with the -separate
switch which stacks input files as bands in a merged file.

But the VRT method would also work well.

Best regards,

Chaitanya kumar CH wrote:
> Dear Greg,
> I am new here. So correct me if I am wrong.
> Try using Virtual Format files. More info at
> http://www.gdal.org/gdal_vrttut.html
> You should be able to create a VRTRasterBand for each band with the
> corresponding source.
> gtif_RGB.vrt would look something like this...
> <VRTDataset rasterXSize="1172" rasterYSize="1864">
>   <VRTRasterBand dataType="Byte" band="1">
>     <SourceFilename relativetoVRT="1">gtif_R.tif</SourceFilename>
>   </VRTRasterBand>
>   <VRTRasterBand dataType="Byte" band="2">
>     <SourceFilename relativetoVRT="1">gtif_G.tif</SourceFilename>
>   </VRTRasterBand>
>   <VRTRasterBand dataType="Byte" band="3">
>     <SourceFilename relativetoVRT="1">gtif_B.tif</SourceFilename>
>   </VRTRasterBand>
> </VRTDataset>
> --
> Chaitanya kumar CH.
> Greg Coats wrote:
>> I have 3 single band GeoTIF images of the same geographic area: one
>> for the Red band, one for the Green band, and one for the Blue band,
>> gtif_R.tif, gtif_G.tif, gtif_B.tif.  Please, what is the
>> gdal_translate syntax http://www.gdal.org/gdal_translate.html to
>> combine these 3 single band GeoTIF images into 1 three band RGB
>> GeoTIF image, gtif_RGB.tif?
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