Ciao Tam,
you need to provide an SLD for your data otherwise GeoServer
will simply try to stretch the data with a local approach to the
incoming request.

This means that if you load it in a tiled client it will appear to
show a checkeboard approach.

As I mention I would suggest to use a proper SLD with a
RasterSymbolizer part. It can be a grayscale one or a full color one
like this one:
https://github.com/geoserver/geoserver/blob/master/data/release/styles/dem.sld

Either way, you, as the data owner, need to decide the color scheme.


Regards,
Simone Giannecchini
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On Sat, Mar 15, 2014 at 5:54 AM, tt5430 <[email protected]> wrote:
> I used the Geoserver OpenLayers previewer to view some of my 16-bit Geotiff
> landsat imagery I downloaded from USGS site.  When I set the previewer
> tiling option to "Single tile",  the image looked fine.  However, when I set
> it to "Tiled", the image tiles color are not consisten.  Is it a bug or
> there is something wrong with the data?  Please see the attached screenshot
> for details.  Let me know if you need the sample image.  In fact the image
> is the one I uploaded to Google Drive for Nicola to debug the
> "ClassCastException" problem I posted earlier.
>
> <http://osgeo-org.1560.x6.nabble.com/file/n5129178/09.png>
>
> Regards,
> Tam
>
>
>
> --
> View this message in context: 
> http://osgeo-org.1560.x6.nabble.com/GeoServer-renders-tiled-geotiff-in-non-uniform-color-tp5129178.html
> Sent from the GeoServer - User mailing list archive at Nabble.com.
>
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