[gdal-dev] Creating new mosaic overview

Chaitanya kumar CH chaitanya.ch at gmail.com
Thu Aug 19 08:48:14 EDT 2010


Edi,

You don't have to specify the -ps parameter. You specify it only if you want
to set a specific resolution. Also, note that gdal_merge.py can accept more
than two files.

Another way to do what you are probably trying to do is to build a VRT
file[1] using gdalbuildvrt [2] and then build an external overview using
"gdaladdo -ro" specifying the level of overview.

On Thu, Aug 19, 2010 at 5:59 PM, Edi.Karadumi <edikaradumi at gmail.com> wrote:

>
> i have 3T of images and there are more than 12000 tiles. I want to create a
> new mosaic overview. Im using the gdal_merge.py command. I cant use
> gdal_merge for every 2 images. Is there any other way to merge the tiles
> for
> the new layer? if my pixel size of the original tile are 0.08meters, how
> many should be the size of the pixel of the merged tiles? I mean what pixel
> size should i use in the gdal_merge.py ... -ps parameter?
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-- 
Best regards,
Chaitanya kumar CH.
/tʃaɪθənjə/ /kʊmɑr/
+91-9494447584
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