P Kishor wrote:
The topic of storing satellite imagery in the db vs. on the filesystem
has been discussed before. I am hoping for answer to the following --
Can I store imagery in the db with the hope of being able to query for
specific areas of interest (AOI) in the imagery and retrieving just
those portions of the image?
Use PostGIS to hold your Mapserver TILEINDEX of your images, and store
your images on disk.
Use Mapserver WMS to pull AOI from this "master image" managed by the
TILEINDEX.
The images repository is not static -- new images are being added
constantly, at a pretty high rate... several Gb a day.
I am hoping for a config like so --
Images from source --> PostGres with images <--> PostGIS with spatial
index of images <--> MapServer <--> Application with a map interface
to allow zooming into the AOI and retrieving the relevant portion from
the underlying imagery
Does PostGIS/PostGres allow for such spatial indexing of images?
Images from Source -> Disk Archive -> Insert metadata record into
PostGIS -> use TILEINDEX in Mapserver to reference particular images ->
web map etc.
Paul
--
Paul Ramsey
Refractions Research
http://www.refractions.net
[EMAIL PROTECTED]
Phone: 250-383-3022
Cell: 250-885-0632
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