Chris Emberson wrote:
The rasters do have colour tables applied, that are expressed using RGB
values, using gdaldem:
75%10700
50%19610927
25%24719572
0%252233109
nv000 0
They are not derived from vector data however. I am unsure of you
:04 +0200
> From: no...@xpam.de
> To: chrisember...@hotmail.com
> CC: chaitanya...@gmail.com; gdal-dev@lists.osgeo.org
> Subject: Re: [gdal-dev] Anti-Aliasing
>
> Chris Emberson wrote:
> > The rasters do have colour tables applied, that are expressed using RGB
> > valu
example of how the bilinear is working (fileD.tif) can be seen in the
attached file. I have tried running running the gdalwarp command above
prior to gdaldem but this makes little difference.
TIA,
Chris
> Date: Mon, 5 Oct 2009 16:46:55 +0530
> Subject: Re: [gdal-dev] Anti-Aliasing
&
ence.
TIA,
Chris
> Date: Mon, 5 Oct 2009 16:46:55 +0530
> Subject: Re: [gdal-dev] Anti-Aliasing
> From: chaitanya...@gmail.com
> To: chrisember...@hotmail.com
> CC: s...@pricepages.org; gdal-dev@lists.osgeo.org
>
> Chris,
>
> The images look like they have a colour tab
solution of the raster by 5x
> (both width and height) using "gdal_translate" and "-outsize 500% 500%"
> this doesn't help either.
>
> Any suggestions gratefully received,
>
> Chris
>
>
>
>
>> Date: Fri, 2 Oct 2009 12:36:24 -0500
>> Subj
; and "-outsize 500% 500%" this doesn't help
either.
Any suggestions gratefully received,
Chris
> Date: Fri, 2 Oct 2009 12:36:24 -0500
> Subject: Re: [gdal-dev] Anti-Aliasing
> From: s...@pricepages.org
> To: chrisember...@hotmail.com
> CC: gdal-dev@lists.osgeo.
Could you give an example of the problem? Anti-aliasing generally only
applies when you are going from vector line drawings to rasterized images.
If I was trying to smooth things I would first look at cubic or bilinear.
Any other resampling may enhance any noise in your image.
~Seth
On Fri, Octob
I am looking for an anti-aliasing function to smooth out the pixellated effect
between raster values. I have tried the various interpolation methods with
gdalwarp and have also increased the resolution of the raster to try and
minimise the effect, to no avail.
Is this a function to be added soo
