From: Gary Morin
Subject: RE: [mapguide-users] Render services image formats
At the moment I think the tiled base layer has to be the same as the overlay.
When I tried PNG8, The results seemed the same as JPG, text and labels are
harder to read.
It would be benefitial if we could
Hi Gary,
It is a well known fact that JPG introduces compression artifacts at hard image
boundaries. I suspect this will happen with text and labels. PNG32 (just PNG
in MapGuide) is a lossless compression format so there will be no artifacts
introduced.
PNG8 is also lossless if have less
Toy can try to split the raster data out into a tiled base layer, which uses
JPEG format. Then use PNG8 format for the vector data (either tiled base layer
or dynamic).
This would move most color variation to the JPEGs, which would then free the
PNG8 color table generation to work with a
