Hi Dirk,

Just an alternative solution to your problem.Try to first enhance the image
and do the LUT burn with UInt 8 bit. Then publish the image then you may
not require the SLD to apply to it.

Thanks & Regards
Rakesh Ranjan


On Thu, Sep 12, 2024 at 11:32 AM <dirk.thalh...@bkg.bund.de> wrote:

> Dear list,
>
> we're currently upgrading Geoserver from 2.22.2 to a current version. In
> our
> setup we have an image pyramid data source with multispectral satellite
> images (5 Band UInt16). Starting from Geoserver 2.22.4 the WMS renders only
> black images for the image data. I couldn't find a clue which could be the
> cause for that in the release notes:
> https://github.com/geoserver/geoserver/releases/tag/2.22.4
>
> Geoserver is running on a linx system with OpenJDK 11 and Tomcat 9. We're
> using following SLD for the rendering:
> <?xml version="1.0" encoding="UTF-8"?><sld:StyledLayerDescriptor
> xmlns="http://www.opengis.net/sld"; xmlns:sld="http://www.opengis.net/sld";
> xmlns:gml="http://www.opengis.net/gml";
> xmlns:ogc="http://www.opengis.net/ogc"; version="1.0.0">
>   <sld:NamedLayer>
>     <sld:Name>RGB</sld:Name>
>     <sld:UserStyle>
>       <sld:Name>RGB</sld:Name>
>       <sld:FeatureTypeStyle>
>         <sld:Rule>
>           <sld:Title>rgb</sld:Title>
>           <RasterSymbolizer>
>             <Opacity>1.0</Opacity>
>             <ChannelSelection>
>               <RedChannel>
>                 <SourceChannelName>3</SourceChannelName>
>               </RedChannel>
>               <GreenChannel>
>                 <SourceChannelName>2</SourceChannelName>
>               </GreenChannel>
>               <BlueChannel>
>                 <SourceChannelName>1</SourceChannelName>
>               </BlueChannel>
>             </ChannelSelection>
>           </RasterSymbolizer>
>         </sld:Rule>
>         <sld:VendorOption name="ruleEvaluation">first</sld:VendorOption>
>       </sld:FeatureTypeStyle>
>     </sld:UserStyle>
>   </sld:NamedLayer>
> </sld:StyledLayerDescriptor>
>
> I already tried ContrastEnhancement with StretchToMinimumMaximum for the
> channels but without success. Do you have any hints what could cause the
> problem and how to solve it?
>
> Kind regards,
>
> Dirk
>
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>
> Please make sure you read the following two resources before posting to
> this list:
> - Earning your support instead of buying it, but Ian Turton:
> http://www.ianturton.com/talks/foss4g.html#/
> - The GeoServer user list posting guidelines:
> http://geoserver.org/comm/userlist-guidelines.html
>
> If you want to request a feature or an improvement, also see this:
> https://github.com/geoserver/geoserver/wiki/Successfully-requesting-and-integrating-new-features-and-improvements-in-GeoServer
>
>
> Geoserver-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/geoserver-users
>
_______________________________________________
Geoserver-users mailing list

Please make sure you read the following two resources before posting to this 
list:
- Earning your support instead of buying it, but Ian Turton: 
http://www.ianturton.com/talks/foss4g.html#/
- The GeoServer user list posting guidelines: 
http://geoserver.org/comm/userlist-guidelines.html

If you want to request a feature or an improvement, also see this: 
https://github.com/geoserver/geoserver/wiki/Successfully-requesting-and-integrating-new-features-and-improvements-in-GeoServer


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