[mapserver-users] Paletted GeoTIFF output in 6.4 not working?

[Stephen Woodbridge]

I'm not sure if this will work but give it a try. You might have to wait 
for Thomas to response as he would know for sure.

OUTPUTFORMAT
   NAME "GTiff"
   DRIVER GDAL/GTiff
   MIMETYPE "image/tiff"
   IMAGEMODE RGB
   EXTENSION "tif"
   FORMATOPTION "INTERLACE=false"
   FORMATOPTION "QUANTIZE_NEW=ON"
   FORMATOPTION "QUANTIZE_FORCE=ON"
   FORMATOPTION "QUANTIZE_DITHER=OFF"
   FORMATOPTION "QUANTIZE_COLORS=256"
END

Also look at http://mapserver.org/mapfile/outputformat.html#outputformat
there are FORMATOPTIONs specific to GDAL/GTiff and GDAl/* that can be 
passed to GDAL when the image is output.

-Steve W


On 4/14/2014 5:24 PM, Avi Blackmore wrote:
> Hello,
>
> 	I've been using Mapserver to (among many other things) classify rasters for years.  I would output GeoTIFFs in 8-bit, paletted mode using a custom output format definition, which I defined as follows:
>
>   OUTPUTFORMAT
>      NAME "GTiff2"
>      MIMETYPE "image/tiff"
>      DRIVER "GDAL/GTiff"
>      EXTENSION "tif"
>      IMAGEMODE "PC256"
>      TRANSPARENT FALSE
>    END
>
> 	This worked for years with versions of Mapserver ranging from 4.4 up to 5.6.
>
> 	Recently, I decided to test an upgrade to 6.4, and I have found that this no longer works.  The imagemode declaration is ignored and coerced back to RGB mode, which is unsuitable for our purposes.
>
> 	What is the proper way to get Mapserver to output 8-bit palletted GeoTIFFs using raster classification in 6.4?  Or, is this no longer possible?  I hope not, because I really want to use 6.4 in production, it has some great new features.
> --
> Avi Blackmore
> Head Programmer/System Administrator
> Agri ImaGIS Technologies, Inc.
>
>
>
>
> _______________________________________________
> mapserver-users mailing list
> mapserver-users at lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/mapserver-users
>