[mapserver-users] 16 bit PNG or 16 bit jpeg output

[Rahkonen Jukka]

Hi,

No way, I mean the WCS version 1.0 as described in the very same document http://www.mapserver.org/ogc/wcs_server.html

-Jukka Rahkonen-


________________________________
Lähettäjä: Ragi Burhum [ragi at burhum.com]
Lähetetty: 19. tammikuuta 2012 19:02
Vastaanottaja: mapserver-users at lists.osgeo.org; Rahkonen Jukka
Aihe: Re: [mapserver-users] 16 bit PNG or 16 bit jpeg output

Hi Jukka,

I assume you mean WCS 2.0 and that you are referring to the MEDIATYPE directive. The documentation at http://mapserver.org/ogc/wcs_server.html#test-your-wcs-1-0-server said that only "multipart/mixed" was allowed. Am I mistaken?

Date: Thu, 19 Jan 2012 08:13:54 +0000
From: Rahkonen Jukka <Jukka.Rahkonen at mmmtike.fi<mailto:Jukka.Rahkonen at mmmtike.fi>>
Subject: Re: [mapserver-users] 16 bit PNG or 16 bit jpeg output
To: "'mapserver-users at lists.osgeo.org<mailto:mapserver-users at lists.osgeo.org>'"
       <mapserver-users at lists.osgeo.org<mailto:mapserver-users at lists.osgeo.org>>
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       <84446DEF76453C439E9E97E438E13A63063812 at suutari.haapa.mmm.fi<mailto:84446DEF76453C439E9E97E438E13A63063812 at suutari.haapa.mmm.fi>>
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Hi,

Could it be possible for you to use WCS 1.0.0 for avoiding the multipart thing?

-Jukka Rahkonen-

________________________________
Ragi Burhum  wrote:
Hello,

I am trying to output a single band 16bit png (or jpeg) output from a Mapserver WCS service.

I have tried the following output formats:

OUTPUTFORMAT
   NAME jpeg
   DRIVER "GDAL/JPEG"
   MIMETYPE "image/jpeg"
   IMAGEMODE INT16
   EXTENSION "jpg"
   FORMATOPTION "QUALITY=85"
 END

OUTPUTFORMAT
   NAME GDALPNG
   DRIVER "GDAL/PNG"
   MIMETYPE "image/png"
   IMAGEMODE INT16
   EXTENSION "png"
   FORMATOPTION "FILENAME=result.png"
 END

When I try different IMAGEMODEs, I get the correct results, but for some reason, INT16 does not work. I looked through the mailing list and I noticed that this question has been asked before:

http://osgeo-org.1803224.n2.nabble.com/16-Bit-PNG-Output-td6249725.html
http://osgeo-org.1803224.n2.nabble.com/Using-a-16-bit-per-band-PNG-image-td2490088.html

I tried looking for a ticket in Trac, but I had no luck. Am I doing something wrong? Perhaps I could accomplish this somehow with a custom gdal driver?

Also, a side question, if I wanted to make sure the replies from my WCS getcoverage calls were not multipart (I am just interested in the binary output), is there some mapserver-specific setting I can use to just get that image as a reply instead of the accompanying xml files?

Thanks!

- Ragi