[Mapserver-users] Raster geotiff turns background yellow

[randy james]

Hi

I do not have a high speed internet available, the
GeoTIFF file is 176MB in size. Too large to email.

Cheers
Randy

--- Ed McNierney <ed at topozone.com> wrote:
> Randy -
> 
> Is it possible for you to make the GeoTIFF
> available?  Thanks.
> 
> 	- Ed
> 
> Ed McNierney
> President and Chief Mapmaker
> TopoZone.com / Maps a la carte, Inc.
> 73 Princeton Street, Suite 305
> North Chelmsford, MA  01863
> ed at topozone.com
> (978) 251-4242 
> 
> -----Original Message-----
> From: randy james [mailto:rjames57 at yahoo.com]
> Sent: Monday, January 27, 2003 12:35 PM
> To: Mapserver Users
> Subject: Re: [Mapserver-users] Raster geotiff turns
> background yellow
> 
> 
> Hi List
> 
> I checked the geotiff file in the GIMP and it did
> not
> have any yellow in the image. But than i checked the
> image created by Mapserver and it has the yellow
> background on it. Soo i assume that the cgi is
> creating the yellow. Also i noticed that the polygon
> layer loaded before the geotiff has changed to the
> grayscale color of the geotiff.
> 
> I am sending the rendered imaged created by
> mapserver
> cgi for review.
> 
> Cheers
> Randy
> 
> --- woodbri at swoodbridge.com wrote:
> > Randy,
> > 
> > I assume that the color change is taking place
> when
> > view in a 
> > browser? Have you tried to view it in an image
> > viewer?
> > 
> > Sometimes the browser pre allocates an bunch of
> > colors and when you 
> > load the geotiff, it does not have enough slots in
> > the color lookup 
> > table and has to assign the additional colors to
> > existing ones. Some 
> > software is better at this than others, but it is
> > typically the 
> > reason why your get the type of color change you
> > described.
> > 
> > -Steve W.
> > 
> > On 24 Jan 2003 at 14:51, randy james wrote:
> > 
> > > Hi list
> > > 
> > > Has anyone experienced problems with a geotiff
> > file
> > > making the image background turn yellow? (or any
> > > color)
> > > 
> > > The orthophoto (geotiff) that causes the problem
> > is my
> > > fist attempt at projecting a raster on the fly.
> I
> > have
> > > tried importing the ortho into GRASS and than
> > > exporting it again, but it did not make a
> > difference.
> > > 
> > > The gdalinfo utility output is quite large for
> the
> > > ortho causing the problem, but once its exported
> > from
> > > GRASS it is the same as the orthos that work (i
> > think)
> > > 
> > > I'm wondering if its something to to with
> > projecting a
> > >  raster or is it the file format. I will read
> and
> > try
> > > the gdal_translate utility next i guess
> > > 
> > > MapServer version 3.6.4 OUTPUT=PNG OUTPUT=JPEG
> > > OUTPUT=WBMP SUPPORTS=PROJ SUPPORTS=TTF
> > > SUPPORTS=WMS_SERVER INPUT EPPL7 INPUT=JPEG
> > > INPUT=POSTGIS INPUT=GDAL INPUT=SHAPEFILE
> > > 
> > > Cheers
> > > Randy
> > > 
> > > 
> > >
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> > > 
> > 
> > 
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> >
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