Hi,
Try adding something like
PROCESSING LUT=0:0,255:200
It should give an linearly lightened image. Have a try and play with the LUT
input/output values, perhaps you'll get a more usable output. By using separate
LUT inputs you can control red, green and blue separately. If you want to use
WYSIWYG tool for colour adjustment take a sample image into GIMP, use curves
tool and save the GIMP curve file once you are satified. PROCESSING LUT=
accepts the curve files saved from GIMP.
GIMP is not meant for big geospatial images. Use some reasonably sized image
excerpt for adjusting colours with it.
-Jukka-
Lähettäjä: David Martinez Morata [mailto:[EMAIL PROTECTED]
Lähetetty: 6. kesäkuuta 2008 11:52
Vastaanottaja: Rahkonen Jukka
Kopio: mapserver-users@lists.osgeo.org
Aihe: Re: [mapserver-users] Output Raster format
Thanks!
I read about procesing functions, but I don't really understand the
functions :S
I have a WMS for raster cartographyc fonds and I need to do more clear
images. the colors in the images are strong colors and when I insert a shape I
have some problems to clear show this shape.
Any sugestions?
Thanks
2008/6/3 Rahkonen Jukka [EMAIL PROTECTED]:
Hi
Mapserver is not much like web processing service. However,
something can be done with layer PROCESSING directives SCALE and LUT. There
may be other options for customizing which I am not aware.
http://mapserver.gis.umn.edu/docs/howto/raster_data/#special-processing-directives
Sometimes I have been thinking that it would be nice to have an
option to push aerial photos out through some sort of sharpening filter.
-Jukka Rahkonen-
Lähettäjä: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Puolesta David Martinez Morata
Lähetetty: 3. kesäkuuta 2008 11:48
Vastaanottaja: mapserver-users@lists.osgeo.org
Aihe: [mapserver-users] Output Raster format
Hello!
I have a question about customizing output format for a
WMS server.
I have a Raster collection in .tiff format, I make a
wms server with this raster files. The output in mapfile its not specified in
map file.
My question its:
Can we change the contrast, saturation and other values
for output image? How? With GDAL functions?
Thanks.
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