Horrible Looking WMS Raster Imagery

[Ed McNierney]

Jennifer -
 
If your output is photographic, you may find JPEG to be a better output
format choice.  The image files will be much smaller.  Now that you know
how to control the output format, you should experiment to see which
format works best for you.
 
     - Ed
 
Ed McNierney
TopoZone.com

________________________________

From: UMN MapServer Users List [mailto:MAPSERVER-USERS at LISTS.UMN.EDU] On
Behalf Of Jennifer Zeisloft
Sent: Tuesday, January 24, 2006 11:56 AM
To: MAPSERVER-USERS at LISTS.UMN.EDU
Subject: Re: [UMN_MAPSERVER-USERS] Horrible Looking WMS Raster Imagery


Hi Bart,

That was exactly what I needed to do.  The problem is fixed!  

Thanks for all the help!

Jennifer


On 1/24/06, Eijnden, B. van den (Bart) <b.vdeijnden at agi.rws.minvenw.nl>
wrote: 

	Jennifer,
	 
	try to use PNG24 for the parameter named image_type in
chameleon.xml.
	 
	Best regards,
	Bart

		-----Oorspronkelijk bericht-----
		Van: UMN MapServer Users List
[mailto:MAPSERVER-USERS at LISTS.UMN.EDU]Namens Jennifer Zeisloft
		Verzonden: dinsdag 24 januari 2006 6:04
		Aan: MAPSERVER-USERS at LISTS.UMN.EDU
		Onderwerp: Re: [UMN_MAPSERVER-USERS] Horrible Looking
WMS Raster Imagery
		
		
		Hi Frank,
		
		Thanks for the response, Frank.  It is sounding more and
more like this is a question I ought to forward to the chameleon list -
because I am also not sure how to generate 24bit output with chameleon!

		
		I appreciate the much needed direction!
		
		Thanks all!
		
		Jennifer
		
		
		On 1/23/06, Frank Warmerdam <warmerdam at pobox.com> wrote:


			On 1/23/06, Brent Pedersen
<bpederse at nature.berkeley.edu> wrote:
			> have you tried using image/jpeg?
			
			In addition to fetching data from the remote
WMSes as 
			JPEG, it is also necessary for mapserver to
generate 24bit
			output (JPEG or PNG24 for instance).  I don't
know how to
			do that with Chameleon myself, but I'm sure
there is a setting
			somewhere.
			
			I think Ed is right that the problem is 24bit to
8bit color 
			conversion with correspondingly poor color
resolution.
			Given sufficient blotchiness from this
conversion it can
			even appear that spatial resolution is degraded
(though it
			isn't actually).
			
			Best regards, 
			--
	
---------------------------------------+--------------------------------
------
			I set the clouds in motion - turn up   | Frank
Warmerdam, warmerdam at pobox.com
			light and sound - activate the windows |
http://pobox.com/~warmerdam <http://pobox.com/%7Ewarmerdam> 
			and watch the world go round - Rush    |
Geospatial Programmer for Rent
			



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