Raster format suggestion

[Ed McNierney]

Dejan -

You're exactly right.  The TIFF files will be much larger and
performance will be much faster.

     - Ed

Ed McNierney
President and Chief Mapmaker
TopoZone.com / Maps a la carte, Inc.
73 Princeton Street, Suite 305
North Chelmsford, MA  01863
Phone: +1 (978) 251-4242
Fax: +1 (978) 251-1396
ed at topozone.com 

-----Original Message-----
From: UMN MapServer Users List [mailto:MAPSERVER-USERS at LISTS.UMN.EDU] On
Behalf Of Gambin Dejan
Sent: Monday, May 08, 2006 3:23 AM
To: MAPSERVER-USERS at LISTS.UMN.EDU
Subject: [UMN_MAPSERVER-USERS] Raster format suggestion

Hi,

I have a hundred of scanned cadastrial maps in JPEG format. I have
georeferenced them (made .jgw files) and now I would like to place them
on my local Mapserver site (for local usage only, on the local network).
All the maps are making a grid and the people that will use the maps
will mostly (but not always) open one of them (because they are
employees and they know what map to choose for their purpose). The maps
are about 8000x6000 pixels in size and the corresponding JPEG files are
about 6MB large.

I would like to hear a suggestion - is it better to use the existing
JPEG files or convert them to TIFF? I have already converted one of them
just for the test and the resulting TIFF file is about 133MB large. I
have read about the poor JPEG perfomance but I am still asking...

thanks very much

dejan