Hi all.
I have a raster
<https://drive.google.com/file/d/1Pnr6EzXxIs5kl_b6mt5NHovYiufjG3Bx/view?usp=sharing>
that contains 4 bands: 2th, 3th, 4th, and 8th bands from sentinel 2A
dataset.
These are BLUE, GREEN, RED, NIR, respectively. When I upload this raster to
GeoServer, Layer Preview (WMS) section gives me a blank image. I tried many
things for days and read all the information I could find but i'm really
stuck. I'm hoping you can help me with this problem. I will describe here
all the things I've been trying.
I'm using GeoServer 2.15.1 in Ubungu 18.04.1 LTS.
This is the complete gdalinfo for the raster:
Driver: GTiff/GeoTIFF
Files: test.tiff
Size is 1999, 1579
Coordinate System is:
PROJCS["WGS 84 / UTM zone 19S",
GEOGCS["WGS 84",
DATUM["WGS_1984",
SPHEROID["WGS 84",6378137,298.257223563,
AUTHORITY["EPSG","7030"]],
AUTHORITY["EPSG","6326"]],
PRIMEM["Greenwich",0,
AUTHORITY["EPSG","8901"]],
UNIT["degree",0.0174532925199433,
AUTHORITY["EPSG","9122"]],
AUTHORITY["EPSG","4326"]],
PROJECTION["Transverse_Mercator"],
PARAMETER["latitude_of_origin",0],
PARAMETER["central_meridian",-69],
PARAMETER["scale_factor",0.9996],
PARAMETER["false_easting",500000],
PARAMETER["false_northing",10000000],
UNIT["metre",1,
AUTHORITY["EPSG","9001"]],
AXIS["Easting",EAST],
AXIS["Northing",NORTH],
AUTHORITY["EPSG","32719"]]
Origin = (560050.000000000000000,5700040.000000000000000)
Pixel Size = (10.000000000000000,-10.000000000000000)
Metadata:
AREA_OR_POINT=Area
Image Structure Metadata:
INTERLEAVE=PIXEL
Corner Coordinates:
Upper Left ( 560050.000, 5700040.000) ( 68d18'28.85"W, 38d50'47.07"S)
Lower Left ( 560050.000, 5684250.000) ( 68d18'23.87"W, 38d59'19.28"S)
Upper Right ( 580040.000, 5700040.000) ( 68d 4'39.66"W, 38d50'41.34"S)
Lower Right ( 580040.000, 5684250.000) ( 68d 4'33.02"W, 38d59'13.52"S)
Center ( 570045.000, 5692145.000) ( 68d11'31.34"W, 38d55' 0.51"S)
*Band 1 Block=1999x1 Type=Float32, ColorInterp=Gray*
*Band 2 Block=1999x1 Type=Float32, ColorInterp=Undefined*
*Band 3 Block=1999x1 Type=Float32, ColorInterp=Undefined*
*Band 4 Block=1999x1 Type=Float32, ColorInterp=Undefined*
*1)* Opened the same raster in QGIS, the raster renders RGB bands just fine
(well, just with RED-BLUE inverted...)
*2) *Downloaded the raster uploaded in GeoServer via QGIS. I noted that the
downloaded file from geoserver now has these band specifications in
gdalinfo:
*Band 1 Block=512x512 Type=Float32, ColorInterp=Red*
*Band 2 Block=512x512 Type=Float32, ColorInterp=Green*
*Band 3 Block=512x512 Type=Float32, ColorInterp=Blue*
*Band 4 Block=512x512 Type=Float32, ColorInterp=Alpha*
So, by default GeoServer seems to be interpreting the bands color in that
way.
If I open this raster in QGIS, I see a blank image. I discovered that the
reason for this is that QGIS assigns the ALPHA channel as a transparency
band. Selecting None in transparency band, QGIS renders again just fine.
At this point I started to think that is a problem related to the alpha
band, or with any raster with more than 3 bands.
*3)* I removed the 4th band from the raster, and uploaded to GeoServer. Now
the image is all black, but adding a proper SLD style with contrast
enhancement (generated from QGIS) GeoServer render the raster just fine.
This is the SLD:
<?xml version="1.0" encoding="UTF-8"?>
<StyledLayerDescriptor xmlns="http://www.opengis.net/sld"; xmlns:ogc="
http://www.opengis.net/ogc"; version="1.0.0" xmlns:gml="
http://www.opengis.net/gml"; xmlns:sld="http://www.opengis.net/sld";>
<UserLayer>
<sld:LayerFeatureConstraints>
<sld:FeatureTypeConstraint/>
</sld:LayerFeatureConstraints>
<sld:UserStyle>
<sld:Name>testrgb</sld:Name>
<sld:FeatureTypeStyle>
<sld:Rule>
<sld:RasterSymbolizer>
<sld:ChannelSelection>
<sld:RedChannel>
<sld:SourceChannelName>3</sld:SourceChannelName>
<sld:ContrastEnhancement>
<sld:Normalize>
<sld:VendorOption
name="algorithm">StretchToMinimumMaximum</sld:VendorOption>
<sld:VendorOption
name="minValue">0.0506552</sld:VendorOption>
<sld:VendorOption
name="maxValue">0.25763</sld:VendorOption>
</sld:Normalize>
</sld:ContrastEnhancement>
</sld:RedChannel>
<sld:GreenChannel>
<sld:SourceChannelName>2</sld:SourceChannelName>
<sld:ContrastEnhancement>
<sld:Normalize>
<sld:VendorOption
name="algorithm">StretchToMinimumMaximum</sld:VendorOption>
<sld:VendorOption
name="minValue">0.07764</sld:VendorOption>
<sld:VendorOption
name="maxValue">0.209892</sld:VendorOption>
</sld:Normalize>
</sld:ContrastEnhancement>
</sld:GreenChannel>
<sld:BlueChannel>
<sld:SourceChannelName>1</sld:SourceChannelName>
<sld:ContrastEnhancement>
<sld:Normalize>
<sld:VendorOption
name="algorithm">StretchToMinimumMaximum</sld:VendorOption>
<sld:VendorOption
name="minValue">0.0916334</sld:VendorOption>
<sld:VendorOption
name="maxValue">0.20144</sld:VendorOption>
</sld:Normalize>
</sld:ContrastEnhancement>
</sld:BlueChannel>
</sld:ChannelSelection>
</sld:RasterSymbolizer>
</sld:Rule>
</sld:FeatureTypeStyle>
</sld:UserStyle>
</UserLayer>
</StyledLayerDescriptor>
*4)* I applied the same SLD style to the raster with 4 bands, and got this
following NullPointerException:
java.lang.NullPointerException
at
it.geosolutions.jaiext.bandselect.BandSelectOpImage.computeTile(BandSelectOpImage.java:142)
at
it.geosolutions.jaiext.bandselect.BandSelectOpImage.getTile(BandSelectOpImage.java:156)
at javax.media.jai.RenderedOp.getTile(RenderedOp.java:2257)
at
com.sun.imageio.plugins.jpeg.JPEGImageWriter.writeOnThread(JPEGImageWriter.java:401)
at
com.sun.imageio.plugins.jpeg.JPEGImageWriter.write(JPEGImageWriter.java:363)
at org.geotools.image.ImageWorker.writeJPEG(ImageWorker.java:4002)
at
org.geoserver.wms.map.JPEGMapResponse.formatImageOutputStream(JPEGMapResponse.java:69)
at
org.geoserver.wms.map.RenderedImageMapResponse.write(RenderedImageMapResponse.java:112)
at org.geoserver.ows.Dispatcher.response(Dispatcher.java:1029)
at org.geoserver.ows.Dispatcher.handleRequestInternal(Dispatcher.java:268)
at
org.springframework.web.servlet.mvc.AbstractController.handleRequest(AbstractController.java:177)
at
org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:52)
at
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1038)
at
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:942)
at
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:998)
at
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:890)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:687)
at
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:875)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:865)
at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1655)
at
org.geoserver.filters.ThreadLocalsCleanupFilter.doFilter(ThreadLocalsCleanupFilter.java:26)
at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642)
at
org.geoserver.filters.SpringDelegatingFilter$Chain.doFilter(SpringDelegatingFilter.java:69)
at org.geoserver.wms.animate.AnimatorFilter.doFilter(AnimatorFilter.java:73)
at
org.geoserver.filters.SpringDelegatingFilter$Chain.doFilter(SpringDelegatingFilter.java:66)
at
org.geoserver.filters.SpringDelegatingFilter.doFilter(SpringDelegatingFilter.java:41)
at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642)
at
org.geoserver.platform.AdvancedDispatchFilter.doFilter(AdvancedDispatchFilter.java:37)
at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:320)
at
org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:70)
at
org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:127)
at
org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:91)
at
org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:74)
at
org.geoserver.security.filter.GeoServerCompositeFilter.doFilter(GeoServerCompositeFilter.java:91)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at
org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:70)
at
org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:119)
at
org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:74)
at
org.geoserver.security.filter.GeoServerCompositeFilter.doFilter(GeoServerCompositeFilter.java:91)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at
org.geoserver.security.filter.GeoServerAnonymousAuthenticationFilter.doFilter(GeoServerAnonymousAuthenticationFilter.java:51)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at
org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:70)
at
org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilterInternal(BasicAuthenticationFilter.java:158)
at
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at
org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:74)
at
org.geoserver.security.filter.GeoServerCompositeFilter.doFilter(GeoServerCompositeFilter.java:91)
at
org.geoserver.security.filter.GeoServerBasicAuthenticationFilter.doFilter(GeoServerBasicAuthenticationFilter.java:81)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at
org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:70)
at
org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105)
at
org.geoserver.security.filter.GeoServerSecurityContextPersistenceFilter$1.doFilter(GeoServerSecurityContextPersistenceFilter.java:52)
at
org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:74)
at
org.geoserver.security.filter.GeoServerCompositeFilter.doFilter(GeoServerCompositeFilter.java:91)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at
org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:215)
at
org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:178)
at
org.geoserver.security.GeoServerSecurityFilterChainProxy.doFilter(GeoServerSecurityFilterChainProxy.java:142)
at
org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:357)
at
org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:270)
at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642)
at org.geoserver.filters.LoggingFilter.doFilter(LoggingFilter.java:90)
at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642)
at
org.geoserver.filters.XFrameOptionsFilter.doFilter(XFrameOptionsFilter.java:79)
at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642)
at org.geoserver.filters.GZIPFilter.doFilter(GZIPFilter.java:42)
at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642)
at
org.geoserver.filters.SessionDebugFilter.doFilter(SessionDebugFilter.java:46)
at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642)
at org.geoserver.filters.FlushSafeFilter.doFilter(FlushSafeFilter.java:42)
at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642)
at
org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200)
at
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1634)
at
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:533)
at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:146)
at
org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)
at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
at
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:257)
at
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1595)
at
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:255)
at
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1340)
at
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:203)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473)
at
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564)
at
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:201)
at
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1242)
at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:144)
at
org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:220)
at
org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:126)
at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
at org.eclipse.jetty.server.Server.handle(Server.java:503)
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:364)
at
org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:260)
at
org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:305)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103)
at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:118)
at
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:333)
at
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:310)
at
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:168)
at
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:126)
at
org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:366)
at
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:765)
at
org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:683)
at java.lang.Thread.run(Thread.java:748)
I couldn't figure out if this exception has anything to do with the 4th
band.
5) If I change *StretchToMinimumMaximum to **ClipToMinimumMaximum,* the
nullpointerexception goes away, but now I see a blank image again.
6) Applying the following SLD style (also generated in QGIS) that renders
only the first band as greyscale works:
<?xml version="1.0" encoding="UTF-8"?>
<StyledLayerDescriptor xmlns="http://www.opengis.net/sld"; xmlns:gml="
http://www.opengis.net/gml"; xmlns:sld="http://www.opengis.net/sld";
version="1.0.0" xmlns:ogc="http://www.opengis.net/ogc";>
<UserLayer>
<sld:LayerFeatureConstraints>
<sld:FeatureTypeConstraint/>
</sld:LayerFeatureConstraints>
<sld:UserStyle>
<sld:Name>test</sld:Name>
<sld:FeatureTypeStyle>
<sld:Rule>
<sld:RasterSymbolizer>
<sld:ChannelSelection>
<sld:GrayChannel>
<sld:SourceChannelName>1</sld:SourceChannelName>
<sld:ContrastEnhancement>
<sld:Normalize>
<sld:VendorOption
name="algorithm">ClipToMinimumMaximum</sld:VendorOption>
<sld:VendorOption
name="minValue">0.0803</sld:VendorOption>
<sld:VendorOption
name="maxValue">0.193875</sld:VendorOption>
</sld:Normalize>
</sld:ContrastEnhancement>
</sld:GrayChannel>
</sld:ChannelSelection>
<sld:ColorMap>
<sld:ColorMapEntry opacity="0" color="#000000"
quantity="0.0869045"/>
<sld:ColorMapEntry color="#000000" quantity="0.0869045"/>
<sld:ColorMapEntry color="#ffffff" quantity="0.193875"/>
<sld:ColorMapEntry opacity="0" color="#ffffff"
quantity="0.193875"/>
</sld:ColorMap>
</sld:RasterSymbolizer>
</sld:Rule>
</sld:FeatureTypeStyle>
</sld:UserStyle>
</UserLayer>
</StyledLayerDescriptor>
The only thing that makes sense to me is that GeoServer is interpreting the
4th band as a transparency band (like QGIS). But I really don't know if
this is the case or if can be disabled.
Thanks in advance.
Tomás
--
Tomás Juan Link
Software Developer
+54 (11) 4342-2976/84
www.spacesur.com
_______________________________________________
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
[email protected]
https://lists.sourceforge.net/lists/listinfo/geoserver-users
