r...@winkey.org
To: Ammar ammar8...@yahoo.com
Cc: Etienne Tourigny etourigny@gmail.com; gdal dev
gdal-dev@lists.osgeo.org
Sent: Thursday, January 23, 2014 6:11 PM
Subject: Re: [gdal-dev] Question about gdaladdo and raster mosaicking
Ammar
you want to turn on internal masks in the shell
Chaitanya,
Thank you very much for your
reply and suggestion. I have used LZW with predictor 2 compression and
added external overviews compressed in LZW too and the image came
perfect. The only downside is the size of each of the images has
expanded from approx. 2 GB to 18-20 GB. So now I
As was suggested, you could try using a mask instead.
On Thu, Jan 23, 2014 at 7:52 AM, Ammar ammar8...@yahoo.com wrote:
Chaitanya,
Thank you very much for your reply and suggestion. I have used LZW with
predictor 2 compression and added external overviews compressed in LZW too
and the
gdal-dev@lists.osgeo.org
Sent: Thursday, January 23, 2014 12:25 PM
Subject: Re: [gdal-dev] Question about gdaladdo and raster mosaicking
As was suggested, you could try using a mask instead.
On Thu, Jan 23, 2014 at 7:52 AM, Ammar ammar8...@yahoo.com wrote:
Chaitanya,
Thank you very much
Try without internal mask.
Duarte
_
De: Ammar [mailto:ammar8...@yahoo.com]
Enviada: quinta-feira, 23 de Janeiro de 2014 14:28
Para: Etienne Tourigny
Cc: gdal dev
Assunto: Re: [gdal-dev] Question about gdaladdo and raster mosaicking
Etienne,
I tried
: Chaitanya kumar CH chaitanya...@gmail.com; gdal dev
gdal-dev@lists.osgeo.org
Sent: Thursday, January 23, 2014 12:25 PM
Subject: Re: [gdal-dev] Question about gdaladdo and raster mosaicking
As was suggested, you could try using a mask instead.
On Thu, Jan 23, 2014 at 7:52 AM, Ammar
Ammar,
You are using lossy JPEG compression. I'm guessing that the white lines are
are actually pixels with values near but not equal to 255. So, they are not
treated as nodata pixels.
My suggestion is to use another format with lossless compression for the 21
images or use a mask band if you
