[Geoserver-users] SLD - Raster problem

Gi_Petrak · February 15, 2014, 2:49am

Hello,

I'm trying to execute the ras:StyleCoverage process from the WPS request
Builder.
I copy the SLD code of a raster image from Styles --> [raster image] and I
paste it
to the ras:StyleCoverage process' form.
I intergrate the sld code from the examples of the following link:
http://docs.geoserver.org/latest/en/user/styling/sld-cookbook/rasters.html
to the main code of the form.

But whenever I execute the process, GeoServer opens the image but with no
changes.
The processed image is exactly the same with the original image.

What do I do wrong ?

Greetings,
George

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Simone_Giannecchini3 · February 16, 2014, 10:52pm

Ciao Gpetr,
I would more information to help out with this problem.

a gdalinfo on the data
a sample style
version of geoserver

Generally speaking an isolate test-case with sample data would be much appreciated.

···

Regards,
Simone Giannecchini

Our support, Your Success! Visit http://opensdi.geo-solutions.it for more information.

Ing. Simone Giannecchini
@simogeo
Founder/Director

GeoSolutions S.A.S.
Via Poggio alle Viti 1187
55054 Massarosa (LU)
Italy
phone: +39 0584 962313
fax: +39 0584 1660272
mob: +39 333 8128928

http://www.geo-solutions.it
http://twitter.com/geosolutions_it

On Sat, Feb 15, 2014 at 3:49 AM, Gpetr <gkpetrak@anonymised.com> wrote:

Hello,

I’m trying to execute the ras:StyleCoverage process from the WPS request
Builder.
I copy the SLD code of a raster image from Styles → [raster image] and I
paste it
to the ras:StyleCoverage process’ form.
I intergrate the sld code from the examples of the following link:
http://docs.geoserver.org/latest/en/user/styling/sld-cookbook/rasters.html
to the main code of the form.

But whenever I execute the process, GeoServer opens the image but with no
changes.
The processed image is exactly the same with the original image.

What do I do wrong ?

Greetings,
George

–
View this message in context: http://osgeo-org.1560.x6.nabble.com/SLD-Raster-problem-tp5103936.html
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Gi_Petrak · February 17, 2014, 12:52am

Ciao Simone, thank you for your reply,

The version of GeoServer that I'm using is the 2.4-SNAPSHOT.
For the test I'm using a satellite image with red green and blue bands
(RGB).
The informations of the image from the gdalinfo command are:

Driver: GTiff/GeoTIFF
Files: L8_ms_30_04_13.tif
Size is 6375, 2820
Coordinate System is:
GEOGCS["WGS 84",
    DATUM["WGS_1984",
        SPHEROID["WGS 84",6378137,298.257223563,
            AUTHORITY["EPSG","7030"]],
        AUTHORITY["EPSG","6326"]],
    PRIMEM["Greenwich",0],
    UNIT["degree",0.0174532925199433],
    AUTHORITY["EPSG","4326"]]
Origin = (22.234617285022399,38.179278213209521)
Pixel Size = (0.000306062103134,-0.000306062103134)
Metadata:
  AREA_OR_POINT=Area
Image Structure Metadata:
  INTERLEAVE=PIXEL
Corner Coordinates:
Upper Left ( 22.2346173, 38.1792782) ( 22d14' 4.62"E, 38d10'45.40"N)
Lower Left ( 22.2346173, 37.3161831) ( 22d14' 4.62"E, 37d18'58.26"N)
Upper Right ( 24.1857632, 38.1792782) ( 24d11' 8.75"E, 38d10'45.40"N)
Lower Right ( 24.1857632, 37.3161831) ( 24d11' 8.75"E, 37d18'58.26"N)
Center ( 23.2101902, 37.7477306) ( 23d12'36.68"E, 37d44'51.83"N)
Band 1 Block=6375x1 Type=Byte, ColorInterp=Red
  Mask Flags: PER_DATASET ALPHA
Band 2 Block=6375x1 Type=Byte, ColorInterp=Green
  Mask Flags: PER_DATASET ALPHA
Band 3 Block=6375x1 Type=Byte, ColorInterp=Blue
  Mask Flags: PER_DATASET ALPHA
Band 4 Block=6375x1 Type=Byte, ColorInterp=Alpha

The SLD code from the Styles --> [Raster Image] is the following:

<?xml version="1.0" encoding="UTF-8"?>
<sld:StyledLayerDescriptor xmlns="http://www.opengis.net/sld"
xmlns:sld="http://www.opengis.net/sld"
xmlns:ogc="http://www.opengis.net/ogc"
xmlns:gml="http://www.opengis.net/gml" version="1.0.0">
  <sld:NamedLayer>
    <sld:Name>l8_ms_30_04_13</sld:Name>
    <sld:UserStyle>
      <sld:Name>l8_ms_30_04_13</sld:Name>
      <sld:Title>l8_ms_30_04_13</sld:Title>
      <sld:FeatureTypeStyle>
        <sld:Name>name</sld:Name>
        <sld:Rule>
          <sld:RasterSymbolizer/>
        </sld:Rule>
      </sld:FeatureTypeStyle>
    </sld:UserStyle>
  </sld:NamedLayer>
</sld:StyledLayerDescriptor>

I intergrate the "Brightness and contrast" example from the following link:
http://docs.geoserver.org/stable/en/user/styling/sld-cookbook/rasters.html#brightness-and-contrast

The final code that I insert on the form, is the following:

<?xml version="1.0" encoding="UTF-8"?>
<sld:StyledLayerDescriptor xmlns="http://www.opengis.net/sld"
xmlns:sld="http://www.opengis.net/sld"
xmlns:ogc="http://www.opengis.net/ogc"
xmlns:gml="http://www.opengis.net/gml" version="1.0.0">
  <sld:NamedLayer>
    <sld:Name>l8_ms_30_04_13</sld:Name>
    <sld:UserStyle>
      <sld:Name>l8_ms_30_04_13</sld:Name>
      <sld:Title>l8_ms_30_04_13</sld:Title>
      <sld:FeatureTypeStyle>
        <sld:Name>name</sld:Name>
        <sld:Rule>
         <sld:RasterSymbolizer/>
         <ContrastEnhancement>
           <Normalize />
           <GammaValue>0.5</GammaValue>
         </ContrastEnhancement>
         <ColorMap>
           <ColorMapEntry color="#008000" quantity="70" />
           <ColorMapEntry color="#663333" quantity="256" />
         </ColorMap>
        </sld:Rule>
      </sld:FeatureTypeStyle>
    </sld:UserStyle>
  </sld:NamedLayer>
</sld:StyledLayerDescriptor>

After the process, the problem remains the same.
How can fix it ?

Thank you again for your help,
Regards,
George

--
View this message in context: http://osgeo-org.1560.x6.nabble.com/SLD-Raster-problem-tp5103936p5104117.html
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Simone_Giannecchini3 · February 17, 2014, 11:43am

Ciao Gpetr,
please, read below…

···

Regards,
Simone Giannecchini

Our support, Your Success! Visit http://opensdi.geo-solutions.it for more information.

Ing. Simone Giannecchini
@simogeo
Founder/Director

GeoSolutions S.A.S.
Via Poggio alle Viti 1187
55054 Massarosa (LU)
Italy
phone: +39 0584 962313
fax: +39 0584 1660272
mob: +39 333 8128928

http://www.geo-solutions.it
http://twitter.com/geosolutions_it

On Mon, Feb 17, 2014 at 1:52 AM, Gpetr <gkpetrak@anonymised.com> wrote:

Ciao Simone, thank you for your reply,

The version of GeoServer that I’m using is the 2.4-SNAPSHOT.
For the test I’m using a satellite image with red green and blue bands
(RGB).
The informations of the image from the gdalinfo command are:

Driver: GTiff/GeoTIFF
Files: L8_ms_30_04_13.tif
Size is 6375, 2820
Coordinate System is:
GEOGCS[“WGS 84”,
DATUM[“WGS_1984”,
SPHEROID[“WGS 84”,6378137,298.257223563,
AUTHORITY[“EPSG”,“7030”]],
AUTHORITY[“EPSG”,“6326”]],
PRIMEM[“Greenwich”,0],
UNIT[“degree”,0.0174532925199433],
AUTHORITY[“EPSG”,“4326”]]
Origin = (22.234617285022399,38.179278213209521)
Pixel Size = (0.000306062103134,-0.000306062103134)
Metadata:
AREA_OR_POINT=Area
Image Structure Metadata:
INTERLEAVE=PIXEL
Corner Coordinates:
Upper Left ( 22.2346173, 38.1792782) ( 22d14’ 4.62"E, 38d10’45.40"N)
Lower Left ( 22.2346173, 37.3161831) ( 22d14’ 4.62"E, 37d18’58.26"N)
Upper Right ( 24.1857632, 38.1792782) ( 24d11’ 8.75"E, 38d10’45.40"N)
Lower Right ( 24.1857632, 37.3161831) ( 24d11’ 8.75"E, 37d18’58.26"N)
Center ( 23.2101902, 37.7477306) ( 23d12’36.68"E, 37d44’51.83"N)
Band 1 Block=6375x1 Type=Byte, ColorInterp=Red
Mask Flags: PER_DATASET ALPHA
Band 2 Block=6375x1 Type=Byte, ColorInterp=Green
Mask Flags: PER_DATASET ALPHA
Band 3 Block=6375x1 Type=Byte, ColorInterp=Blue
Mask Flags: PER_DATASET ALPHA
Band 4 Block=6375x1 Type=Byte, ColorInterp=Alpha

The SLD code from the Styles → [Raster Image] is the following:
<?xml version="1.0" encoding="UTF-8"?>
<sld:StyledLayerDescriptor xmlns=“http://www.opengis.net/sld”
xmlns:sld=“http://www.opengis.net/sld”
xmlns:ogc=“http://www.opengis.net/ogc”
xmlns:gml=“http://www.opengis.net/gml” version=“1.0.0”>
sld:NamedLayer
sld:Namel8_ms_30_04_13</sld:Name>
sld:UserStyle
sld:Namel8_ms_30_04_13</sld:Name>
sld:Titlel8_ms_30_04_13</sld:Title>
sld:FeatureTypeStyle
sld:Namename</sld:Name>
sld:Rule
sld:RasterSymbolizer/
</sld:Rule>
</sld:FeatureTypeStyle>
</sld:UserStyle>
</sld:NamedLayer>
</sld:StyledLayerDescriptor>

I intergrate the “Brightness and contrast” example from the following link:
http://docs.geoserver.org/stable/en/user/styling/sld-cookbook/rasters.html#brightness-and-contrast

The final code that I insert on the form, is the following:
<?xml version="1.0" encoding="UTF-8"?>
<sld:StyledLayerDescriptor xmlns=“http://www.opengis.net/sld”
xmlns:sld=“http://www.opengis.net/sld”
xmlns:ogc=“http://www.opengis.net/ogc”
xmlns:gml=“http://www.opengis.net/gml” version=“1.0.0”>
sld:NamedLayer
sld:Namel8_ms_30_04_13</sld:Name>
sld:UserStyle
sld:Namel8_ms_30_04_13</sld:Name>
sld:Titlel8_ms_30_04_13</sld:Title>
sld:FeatureTypeStyle
sld:Namename</sld:Name>
sld:Rule
sld:RasterSymbolizer/

0.5

</sld:Rule>
</sld:FeatureTypeStyle>
</sld:UserStyle>
</sld:NamedLayer>
</sld:StyledLayerDescriptor>

This won’t work on your dataset. You are trying to apply a colormap to a 4 band image, it does not make sense.

I would do this:

select 3 bands out of 4, removing the alpha (assuming it is an alpha)
aply the contrast enhancement on each single band (or gloablly)

Check the following links:

http://docs.geoserver.org/stable/en/user/styling/sld-reference/rastersymbolizer.html

http://docs.codehaus.org/display/GEOTOOLS/Raster+Symbolizer+support

After the process, the problem remains the same.
How can fix it ?

Thank you again for your help,
Regards,
George

–
View this message in context: http://osgeo-org.1560.x6.nabble.com/SLD-Raster-problem-tp5103936p5104117.html

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Gi_Petrak · February 19, 2014, 2:37am

Hello Simone, thanks for you helpful reply,

You 're right the RGB images have another Alpha band ?
I tried some more processes specifying the bands (red, green, blue) but
nothing change.

The following code is one of my tests:

<?xml version="1.0" encoding="UTF-8"?>
<sld:StyledLayerDescriptor xmlns="http://www.opengis.net/sld"
xmlns:sld="http://www.opengis.net/sld"
xmlns:ogc="http://www.opengis.net/ogc"
xmlns:gml="http://www.opengis.net/gml" version="1.0.0">
  <sld:NamedLayer>
    <sld:Name>l8_ms_30_04_13</sld:Name>
    <sld:UserStyle>
      <sld:Name>l8_ms_30_04_13</sld:Name>
      <sld:Title>l8_ms_30_04_13</sld:Title>
      <sld:FeatureTypeStyle>
        <sld:Name>name</sld:Name>
        <sld:Rule>
          <Opacity>0.5</Opacity>
          <ChannelSelection>
          <RedChannel>
          <SourceChannelName>4</SourceChannelName>
         </RedChannel>
         <GreenChannel>
        <SourceChannelName>3</SourceChannelName> >
        </GreenChannel>
         <BlueChannel>
         <SourceChannelName>2</SourceChannelName>
         </BlueChannel>
         </ChannelSelection>
         <sld:RasterSymbolizer/>
        </sld:Rule>
      </sld:FeatureTypeStyle>
    </sld:UserStyle>
  </sld:NamedLayer>
</sld:StyledLayerDescriptor>

What do I do wrong ? Is needed to remove the Alpha band ? and how can I do
it from GeoServer ?

Thank you in advace,
George

--
View this message in context: http://osgeo-org.1560.x6.nabble.com/SLD-Raster-problem-tp5103936p5104591.html
Sent from the GeoServer - User mailing list archive at Nabble.com.

Simone_Giannecchini3 · February 19, 2014, 10:10am

Ciao Gpetr,
can you send a sample, even privately?

···

Regards,
Simone Giannecchini

Our support, Your Success! Visit http://opensdi.geo-solutions.it for more information.

Ing. Simone Giannecchini
@simogeo
Founder/Director

GeoSolutions S.A.S.
Via Poggio alle Viti 1187
55054 Massarosa (LU)
Italy
phone: +39 0584 962313
fax: +39 0584 1660272
mob: +39 333 8128928

http://www.geo-solutions.it
http://twitter.com/geosolutions_it

On Wed, Feb 19, 2014 at 3:37 AM, Gpetr <gkpetrak@anonymised.com> wrote:

Hello Simone, thanks for you helpful reply,

You 're right the RGB images have another Alpha band ?
I tried some more processes specifying the bands (red, green, blue) but
nothing change.

The following code is one of my tests:
<?xml version="1.0" encoding="UTF-8"?>
<sld:StyledLayerDescriptor xmlns=“http://www.opengis.net/sld”
xmlns:sld=“http://www.opengis.net/sld”
xmlns:ogc=“http://www.opengis.net/ogc”
xmlns:gml=“http://www.opengis.net/gml” version=“1.0.0”>
sld:NamedLayer
sld:Namel8_ms_30_04_13</sld:Name>
sld:UserStyle
sld:Namel8_ms_30_04_13</sld:Name>
sld:Titlel8_ms_30_04_13</sld:Title>
sld:FeatureTypeStyle
sld:Namename</sld:Name>
sld:Rule

0.5

4

3 >

2

sld:RasterSymbolizer/
</sld:Rule>
</sld:FeatureTypeStyle>
</sld:UserStyle>
</sld:NamedLayer>
</sld:StyledLayerDescriptor>

What do I do wrong ? Is needed to remove the Alpha band ? and how can I do
it from GeoServer ?

Thank you in advace,
George

–
View this message in context: http://osgeo-org.1560.x6.nabble.com/SLD-Raster-problem-tp5103936p5104591.html

Sent from the GeoServer - User mailing list archive at Nabble.com.

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[Geoserver-users] SLD - Raster problem

Regards, Simone Giannecchini

Our support, Your Success! Visit http://opensdi.geo-solutions.it for more information.

Regards, Simone Giannecchini

Our support, Your Success! Visit http://opensdi.geo-solutions.it for more information.

Regards, Simone Giannecchini

Our support, Your Success! Visit http://opensdi.geo-solutions.it for more information.

Regards,
Simone Giannecchini

Regards,
Simone Giannecchini

Regards,
Simone Giannecchini