[Geoserver-users] geoserver returning 8 bit image

shashank520 · July 2, 2009, 4:59pm

Hi,
when I am making a request to geoserver from osgearth,in return it's giving
me tiles in 8 bit rgb image....originally when I stored the image ,it was a
16 bit .tif image in a single band.Now I want that Geoserver must return me
a 16 bit single(or even 16 bit rgb) band image when i make it request....How
can i coerce it doing so?
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Simone3 · July 3, 2009, 12:42pm

I think you need first to exactly understand what you are doing.
WMS returns a rendered version of your data, that's why you are
getting a 8 bit image.
If you need to get access to the raw data you need to pass via WCS.

To answer your question, you can't get a 16 bits image out of WMS.

Simone.
-------------------------------------------------------
Ing. Simone Giannecchini
GeoSolutions S.A.S.
Owner - Software Engineer
Via Carignoni 51
55041 Camaiore (LU)
Italy

phone: +39 0584983027
fax: +39 0584983027
mob: +39 333 8128928

http://www.geo-solutions.it
http://simboss.blogspot.com/
http://www.linkedin.com/in/simonegiannecchini

-------------------------------------------------------

On Thu, Jul 2, 2009 at 6:59 PM, shashank520<bajpai.shashank20@anonymised.com> wrote:

Hi,
when I am making a request to geoserver from osgearth,in return it's giving
me tiles in 8 bit rgb image....originally when I stored the image ,it was a
16 bit .tif image in a single band.Now I want that Geoserver must return me
a 16 bit single(or even 16 bit rgb) band image when i make it request....How
can i coerce it doing so?
--
View this message in context: http://www.nabble.com/geoserver-returning-8-bit-image-tp24310430p24310430.html
Sent from the GeoServer - User mailing list archive at Nabble.com.

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Pinki_Gajjar · July 3, 2009, 1:27pm

hi 520,

please let me know how to display 16 bit image in geoserver because when i try to upload it is giving only black output in geoserver.

thanks
pinki

On Thu, Jul 2, 2009 at 10:29 PM, shashank520 <bajpai.shashank20@anonymised.com> wrote:

Hi,
when I am making a request to geoserver from osgearth,in return it’s giving

me tiles in 8 bit rgb image…originally when I stored the image ,it was a
16 bit .tif image in a single band.Now I want that Geoserver must return me
a 16 bit single(or even 16 bit rgb) band image when i make it request…How
can i coerce it doing so?

View this message in context: http://www.nabble.com/geoserver-returning-8-bit-image-tp24310430p24310430.html

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

Geoserver-users mailing list
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Simone3 · July 3, 2009, 1:34pm

Pinki,
just a guess (unless you give meaningful information it is quite
impossible to help you out) you are tryin to expose 16 bits remote
sensing data whose dynamic is compressed towards 0 and you are getting
a black map (which is correct btw) out of it.

Simone.

-------------------------------------------------------
Ing. Simone Giannecchini
GeoSolutions S.A.S.
Owner - Software Engineer
Via Carignoni 51
55041 Camaiore (LU)
Italy

phone: +39 0584983027
fax: +39 0584983027
mob: +39 333 8128928

http://www.geo-solutions.it
http://simboss.blogspot.com/
http://www.linkedin.com/in/simonegiannecchini

-------------------------------------------------------

On Fri, Jul 3, 2009 at 3:27 PM, Pinki Gajjar<pinki.gajjar@anonymised.com> wrote:

hi 520,
please let me know how to display 16 bit image in geoserver because when i
try to upload it is giving only black output in geoserver.

thanks
pinki
On Thu, Jul 2, 2009 at 10:29 PM, shashank520 <bajpai.shashank20@anonymised.com>
wrote:

Hi,
when I am making a request to geoserver from osgearth,in return it's
giving
me tiles in 8 bit rgb image....originally when I stored the image ,it was
a
16 bit .tif image in a single band.Now I want that Geoserver must return
me
a 16 bit single(or even 16 bit rgb) band image when i make it
request....How
can i coerce it doing so?
--
View this message in context:
http://www.nabble.com/geoserver-returning-8-bit-image-tp24310430p24310430.html
Sent from the GeoServer - User mailing list archive at Nabble.com.

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Pinki_Gajjar · July 3, 2009, 2:08pm

Hi Simone,

Your guess is correct my image gets compressed do you know what can be the solution?
i told to sir and he is telling me that you are correct but i want to display that image in geoserver do you know any solution.

thanks
pinki

On Fri, Jul 3, 2009 at 7:04 PM, Simone Giannecchini <simboss1@anonymised.com84…> wrote:

Pinki,
just a guess (unless you give meaningful information it is quite
impossible to help you out) you are tryin to expose 16 bits remote
sensing data whose dynamic is compressed towards 0 and you are getting
a black map (which is correct btw) out of it.

Simone.

Ing. Simone Giannecchini
GeoSolutions S.A.S.
Owner - Software Engineer
Via Carignoni 51
55041 Camaiore (LU)
Italy

phone: +39 0584983027
fax: +39 0584983027
mob: +39 333 8128928

http://www.geo-solutions.it
http://simboss.blogspot.com/
http://www.linkedin.com/in/simonegiannecchini

On Fri, Jul 3, 2009 at 3:27 PM, Pinki Gajjar<pinki.gajjar@anonymised.com> wrote:

hi 520,
please let me know how to display 16 bit image in geoserver because when i
try to upload it is giving only black output in geoserver.

thanks
pinki
On Thu, Jul 2, 2009 at 10:29 PM, shashank520 <bajpai.shashank20@anonymised.com84…>
wrote:

Hi,
when I am making a request to geoserver from osgearth,in return it’s
giving
me tiles in 8 bit rgb image…originally when I stored the image ,it was
a
16 bit .tif image in a single band.Now I want that Geoserver must return
me
a 16 bit single(or even 16 bit rgb) band image when i make it
request…How
can i coerce it doing so?

View this message in context:
http://www.nabble.com/geoserver-returning-8-bit-image-tp24310430p24310430.html
Sent from the GeoServer - User mailing list archive at Nabble.com.

Geoserver-users mailing list
Geoserver-users@lists.sourceforge.net
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Simone_Giannecchini3 · July 3, 2009, 2:15pm

Try to use the ContrastEnhancement element of the raster symbolizer.

http://geoserver.org/display/GEOSDOC/RasterSymbolizer

Simone.
-------------------------------------------------------
Ing. Simone Giannecchini
GeoSolutions S.A.S.
Owner - Software Engineer
Via Carignoni 51
55041 Camaiore (LU)
Italy

phone: +39 0584983027
fax: +39 0584983027
mob: +39 333 8128928

http://www.geo-solutions.it
http://simboss.blogspot.com/
http://www.linkedin.com/in/simonegiannecchini

-------------------------------------------------------

On Fri, Jul 3, 2009 at 4:08 PM, Pinki Gajjar<pinki.gajjar@anonymised.com> wrote:

Hi Simone,

Your guess is correct my image gets compressed do you know what can be the
solution?
i told to sir and he is telling me that you are correct but i want to
display that image in geoserver do you know any solution.

thanks
pinki

On Fri, Jul 3, 2009 at 7:04 PM, Simone Giannecchini <simboss1@anonymised.com>
wrote:

Pinki,
just a guess (unless you give meaningful information it is quite
impossible to help you out) you are tryin to expose 16 bits remote
sensing data whose dynamic is compressed towards 0 and you are getting
a black map (which is correct btw) out of it.

Simone.

-------------------------------------------------------
Ing. Simone Giannecchini
GeoSolutions S.A.S.
Owner - Software Engineer
Via Carignoni 51
55041 Camaiore (LU)
Italy

phone: +39 0584983027
fax: +39 0584983027
mob: +39 333 8128928

http://www.geo-solutions.it
http://simboss.blogspot.com/
http://www.linkedin.com/in/simonegiannecchini

-------------------------------------------------------

On Fri, Jul 3, 2009 at 3:27 PM, Pinki Gajjar<pinki.gajjar@anonymised.com>
wrote:
> hi 520,
> please let me know how to display 16 bit image in geoserver because when
> i
> try to upload it is giving only black output in geoserver.
>
> thanks
> pinki
> On Thu, Jul 2, 2009 at 10:29 PM, shashank520
> <bajpai.shashank20@anonymised.com>
> wrote:
>>
>> Hi,
>> when I am making a request to geoserver from osgearth,in return it's
>> giving
>> me tiles in 8 bit rgb image....originally when I stored the image ,it
>> was
>> a
>> 16 bit .tif image in a single band.Now I want that Geoserver must
>> return
>> me
>> a 16 bit single(or even 16 bit rgb) band image when i make it
>> request....How
>> can i coerce it doing so?
>> --
>> View this message in context:
>>
>> http://www.nabble.com/geoserver-returning-8-bit-image-tp24310430p24310430.html
>> Sent from the GeoServer - User mailing list archive at Nabble.com.
>>
>>
>>
>>
>> ------------------------------------------------------------------------------
>> _______________________________________________
>> Geoserver-users mailing list
>> Geoserver-users@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/geoserver-users
>
>
>
> ------------------------------------------------------------------------------
>
> _______________________________________________
> Geoserver-users mailing list
> Geoserver-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/geoserver-users
>
>

[Geoserver-users] geoserver returning 8 bit image

me tiles in 8 bit rgb image…originally when I stored the image ,it was a 16 bit .tif image in a single band.Now I want that Geoserver must return me a 16 bit single(or even 16 bit rgb) band image when i make it request…How can i coerce it doing so?

me tiles in 8 bit rgb image…originally when I stored the image ,it was a
16 bit .tif image in a single band.Now I want that Geoserver must return me
a 16 bit single(or even 16 bit rgb) band image when i make it request…How
can i coerce it doing so?