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

[Ragi Burhum]

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>
> Subject: Re: [mapserver-users] 16 bit PNG or 16 bit jpeg output
> To: "'mapserver-users at lists.osgeo.org'"
>        <mapserver-users at lists.osgeo.org>
> Message-ID:
>        <84446DEF76453C439E9E97E438E13A63063812 at suutari.haapa.mmm.fi>
> Content-Type: text/plain; charset="us-ascii"
>
> 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
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