Hi Samuel,
I didn't see your previous email (ended somehow in spam?), therefore sorry
for not having answered before.
I'm also keeping the whole list in CC in case anyone else is able to share
his knowledge and provide additional feedbacks.
When dealing with more than 3 bands in WMS (where > 3 is not alpha channel)
you could consider setting up an SLD to select the bands you need (through
RasterSymbolizer's channel selection [1] ) or setup a coverageView to
reorder/reorganize the bands as you need [2].
Also note from your gdalinfo attachment that your images are 16bit per
band.
You may consider to reprocess them to convert to 8 bit before serving the
dataset through WMS OR you can add contrastEnhancement to your SLD to have
bands rescaled to 8 bit. Preprocessing in advance should allow for better
rendering performances since the operation is made once before configuring
the layer instead of having the constrast enhancement processing done on
the fly for each getMap.
Does it helps?
Cheers,
Daniele
[1]:
http://docs.geoserver.org/latest/en/user/styling/sld/reference/rastersymbolizer.html#channelselection
[2]: http://docs.geoserver.org/latest/en/user/data/raster/coverageview.html
[3]:
http://docs.geoserver.org/latest/en/user/styling/sld/reference/rastersymbolizer.html#contrastenhancement
On Thu, Feb 23, 2017 at 3:03 AM, Samuel Damesin <
samuel.dame...@scionresearch.com> wrote:
> Hi Daniele,
>
>
>
> Sorry for the reminder but do you think you could help me with this? I am
> still confused and don’t know where to look or how to handle this. My goal
> is to publish 4 (or more in the future) bands tiffs via the WMS
> functionality of Geoserver.
>
>
>
> Many thanks,
>
> Sam
>
>
>
>
>
> *From:* Samuel Damesin
> *Sent:* Thursday, 2 February 2017 10:35 a.m.
> *To:* 'Daniele Romagnoli' < daniele.romagn...@geo-solutions.it >
> *Subject:* RE: [Geoserver-users] Serving 4 bands GeoTiff with GeoServer
> WMS
>
>
>
> Hi Daniele,
>
>
>
> Thank you for your reply and help.
>
>
>
> - Are you sure that QGIS is really rendering all 4 bands? As far as I
> remember from some tests I did in the past, it has Red,Green,Band band
> selection in the Properties->Style section of the layer where it is usually
> assigning Band1, Band2 and Band3 respectively. Moreover it was using the
> NIR as Alpha band in the Transparency Section. Can you double check that?
>
>
>
> Well, what I meant is that I can see in the layer’s properties that it has
> 4 bands and display them as I like (with the tiff loaded from a local
> file). See attachments, the ones called “local file” are with the file
> loaded locally, the one called “wms” are the one when publishing with WMS.
> You can see that I don’t have the same “properties” and no access to the
> “multiband color” option.
>
> It does seem that by default it is using the 4th band as an alpha layer,
> because using the default “raster” style it shows a kind of transparent
> image.
>
>
>
> - Do you a gdalinfo output of one of these datasets?
>
>
>
> Yes, see attachment.
>
>
>
> - Which GeoServer version are you using?
>
> · Version I am using: GeoServer Version2.10.0
>
> · Git Revision94615dac4a2056ed47e2e67fa823ea63325058cf
>
> · Build Date28-Oct-2016 09:41
>
> · GeoTools Version16.0 (rev ae16e116c58d9f4bc3fcec2566fca3
> dd8dd92120)
>
> · GeoWebCache Version1.10.0 (rev 1.10.x/
> 8908bc23e322f84849517758e5134167e4feb73d)
>
>
>
> - I'm wondering if it is related to QGIS rendering of an external WMS
> layer.
>
> What happens if you open the OpenLayers preview in GeoServer and what
> about a getFeatureInfo request?
>
> That’s also strange, the openlayers preview work nicely (I can see a RGB
> color).
>
>
>
> - I think that the histogram and pyramids have been internally
> computed by QGIS on the local GeoTIFF.
>
> There is no relation with the WMS layer.
>
> What I meant is that it seems that QGIS (and ArcGIS) understand or read
> both layers differently. See attachments, for some reasons the properties
> are not the same and I don’t have access to the same options.
>
>
>
> Hope this make sense, please let me know if you have additional questions.
>
>
>
> Thanks,
>
> sam
>
>
>
> *From:* dany.geoto...@gmail.com [mailto:dany.geoto...@gmail.com
> <dany.geoto...@gmail.com>] *On Behalf Of *Daniele Romagnoli
> *Sent:* Thursday, 2 February 2017 12:17 a.m.
> *To:* Samuel Damesin <samuel.dame...@scionresearch.com>
> *Cc:* geoserver-users@lists.sourceforge.net
> *Subject:* Re: [Geoserver-users] Serving 4 bands GeoTiff with GeoServer
> WMS
>
>
>
> Hi Sam,
>
>
>
>
>
> On Wed, Feb 1, 2017 at 2:46 AM, sdamescion <samuel.damesin@scionresearch.
> com> wrote:
>
> Hi there,
>
> I have a couple of 4 bands (R, G, B, NIR) geotifs that I would like to
> serve
> as a WMS service with GeoServer. When loading the tifs localy in QGIS they
> are nicely displayed as 4 bands,
>
>
>
> Are you sure that QGIS is really rendering all 4 bands?
>
> As far as I remember from some tests I did in the past, it has
> Red,Green,Band band selection in the Properties->Style section of the layer
> where it is usually assigning Band1, Band2 and Band3 respectively. Moreover
> it was using the NIR as Alpha band in the Transparency Section.
>
> Can you double check that?
>
> Do you a gdalinfo output of one of these datasets?
>
>
>
> but when publishing them via GeoServer they
> seem to be recognized as single band with QGIS or ArcGIS.
>
> Which GeoServer version are you using?
>
>
>
> When adding the new layer in the GeoServer interface I can see that the
> images have 4 bands (4 lines in the "Coverage Band Details" table. I tried
> to change the raster style as well to force the raster to use band 1 for R,
> band 2 for G, and band 3 for B. But when adding the layer (via WMS service)
> in QGIS it only recognized as a single band image.
>
> I'm wondering if it is related to QGIS rendering of an external WMS layer.
>
> What happens if you open the OpenLayers preview in GeoServer and what
> about a getFeatureInfo request?
>
>
>
> In the property section
> of the layer I am also loosing some information (like histogram, pyramids,
> etc.).
>
>
>
> I think that the histogram and pyramids have been internally computed by
> QGIS on the local GeoTIFF.
>
> There is no relation with the WMS layer.
>
>
>
> Cheers,
>
> Daniele
>
>
> There is probably something that I missed, I am quite new to GeoServer, but
> I am not sure what to do or how to solve this, is there any way to provide
> those 4 bands images via WMS?
>
> Thank you for any help you can provide.
>
> Cheers,
> Sam
>
>
>
> --
> View this message in context: http://osgeo-org.1560.x6.
> nabble.com/Serving-4-bands-GeoTiff-with-GeoServer-WMS-tp5305653.html
> Sent from the GeoServer - User mailing list archive at Nabble.com.
>
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>
>
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> --
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> ==
>
> GeoServer Professional Services from the experts! Visit
> http://goo.gl/it488V for more information.
> ==
>
> Ing. Daniele Romagnoli
> Senior Software Engineer
>
> GeoSolutions S.A.S.
> Via di Montramito 3/A
> 55054 Massarosa (LU)
> Italy
> phone: +39 0584 962313 <+39%200584%20962313>
> fax: +39 0584 1660272 <+39%200584%20166%200272>
>
> http://www.geo-solutions.it
> http://twitter.com/geosolutions_it
>
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--
==
GeoServer Professional Services from the experts! Visit
http://goo.gl/it488V for more information.
==
Ing. Daniele Romagnoli
Senior Software Engineer
GeoSolutions S.A.S.
Via di Montramito 3/A
55054 Massarosa (LU)
Italy
phone: +39 0584 962313
fax: +39 0584 1660272
http://www.geo-solutions.it
http://twitter.com/geosolutions_it
-------------------------------------------------------
*AVVERTENZE AI SENSI DEL D.Lgs. 196/2003*
Le informazioni contenute in questo messaggio di posta elettronica e/o
nel/i file/s allegato/i sono da considerarsi strettamente riservate. Il
loro utilizzo è consentito esclusivamente al destinatario del messaggio,
per le finalità indicate nel messaggio stesso. Qualora riceviate questo
messaggio senza esserne il destinatario, Vi preghiamo cortesemente di
darcene notizia via e-mail e di procedere alla distruzione del messaggio
stesso, cancellandolo dal Vostro sistema. Conservare il messaggio stesso,
divulgarlo anche in parte, distribuirlo ad altri soggetti, copiarlo, od
utilizzarlo per finalità diverse, costituisce comportamento contrario ai
principi dettati dal D.Lgs. 196/2003.
The information in this message and/or attachments, is intended solely for
the attention and use of the named addressee(s) and may be confidential or
proprietary in nature or covered by the provisions of privacy act
(Legislative Decree June, 30 2003, no.196 - Italy's New Data Protection
Code).Any use not in accord with its purpose, any disclosure, reproduction,
copying, distribution, or either dissemination, either whole or partial, is
strictly forbidden except previous formal approval of the named
addressee(s). If you are not the intended recipient, please contact
immediately the sender by telephone, fax or e-mail and delete the
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