is a nicely smoothed dezoom of the original.
-Original Message-
From: gdal-dev-boun...@lists.osgeo.org
[mailto:gdal-dev-boun...@lists.osgeo.org] On Behalf Of Jean-Claude Repetto
Sent: Tuesday, February 22, 2011 10:48 AM
To: gdal-dev@lists.osgeo.org
Subject: Re: [gdal-dev] Downsample with
Le 22/02/2011 16:39, Jay Jennings a écrit :
>> there is a gdal method to extract a single overview level from a tif
but I can never
>> remember it maybe someone will chime in...
If so, that would be really helpful. Does anyone know how to extract a
single overview from a pyramid’d image such
command like:
gdaladdo .tif 2 4 8 16 32 64 128 256
From: Norman Vine [mailto:n...@cape.com]
Sent: Tuesday, February 22, 2011 4:09 AM
To: Jay Jennings
Cc: gdal-dev@lists.osgeo.org
Subject: Re: [gdal-dev] Downsample with averaging?
On Feb 21, 2011, at 3:26 PM, Jay Jennings wrote:
Hello list,
On Feb 21, 2011, at 3:26 PM, Jay Jennings wrote:
> Hello list,
> (using GDAL 1.8.0) I am trying to create a 32:1 down-sampled overview of a
> GeoTiff satellite image. My first thought was gdal_translate, with args such
> as “-outsize 3.125% 3.125%”… which produces surprisingly high quality giv
29.6249018) ( 100d14'59.51"W, 29d37'29.65"N)
>
> Lower Right ( -100.2498639, 29.4997420) ( 100d14'59.51"W, 29d29'59.07"N)
>
> Center ( -100.3125146, 29.5623219) ( 100d18'45.05"W, 29d33'44.36"N)
>
> Band 1 Block=512x512
On Mon, Feb 21, 2011 at 2:26 PM, Jay Jennings wrote:
> [...] I’m looking for a
> downsampling scheme that creates a result pixel by averaging all relevant
> source pixels (I know, for 32:1 downsample, that means 1024 source pixels
> for each result pixel !) with the hope of an output that is not “
18'45.05"W, 29d33'44.36"N)
Band 1 Block=512x512 Type=Byte, ColorInterp=Red
Band 2 Block=512x512 Type=Byte, ColorInterp=Green
Band 3 Block=512x512 Type=Byte, ColorInterp=Blue
From: Chaitanya kumar CH [mailto:chaitanya...@gmail.com]
Sent: Monday, February 21, 2011 4:19 PM
To: Jay J
Jay,
Can you provide a sample file that gives this error?
On Tue, Feb 22, 2011 at 1:56 AM, Jay Jennings wrote:
> Hello list,
>
> (using GDAL 1.8.0) I am trying to create a 32:1 down-sampled overview of a
> GeoTiff satellite image. My first thought was gdal_translate, with args
> such as “-outsi
Hello list,
(using GDAL 1.8.0) I am trying to create a 32:1 down-sampled overview of a
GeoTiff satellite image. My first thought was gdal_translate, with args such
as "-outsize 3.125% 3.125%"... which produces surprisingly high quality given
the absence of a resampling option. However I'm loo
