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1. Greenstone image collection documentation (UdcsWeb3)
Date: Tue, 27 Sep 2005 12:53:51 +0200
From: "UdcsWeb3" <UdcsWeb3@unisa.ac.za>
Subject: [greenstone-users] Greenstone image collection documentation
To: < <firstname.lastname@example.org>>
Content-Type: text/plain; charset=US-ASCII
>We don't have a good system at the moment for user supplied
>documentation. The best thing to do is to post it to this mailing list,
>then it will be included (at some stage) in the mailing list archives
>collection. Also we can add it into our FAQ as well.
>We are considering setting up a wiki to allow users to add this kind of
Thanks for a great product once again
This is the documentation that I've set up during the build of a image
collection and might be useful for someone else...
General Information about the Collection:
I've build a collection called ghandi2 on my pc locally using a
combination of command line scripts (Greenstone scripts that came with
the installation) as well as the Greenstone Librarian Interface (here
after refered to as GLI), accessing any collection in the following
I used the perl scripts to make and build the collection and the GLI to
assign metadata to the documents an to setup the search criteria.
(Searches are based on the description of a specific image).
Although there is already a file with metadata for the 254 images (data
describing the content of the images, the creator, dates and so forth -
called: gdsl-data.txt), I was not able to incorporate this file into the
GReenstone environment. I used the GLI (Greenstone Librarian Interface)
to input data for a particular document. This being the reason that I've
built the collection based on only 25 images.
(I haven't found a sollution yet to incorporate a tab delimitted text
file into greenstone and to generate the metadata.xml file on the fly)
Greenstone generates a xml file for each and every image containing the
metadata as well as a thumbnail (thumbnails in other words do not need
to exist since they are generated when the collection is build).
The Greenstone Web Interface (look and feel) is very customizable but
one has to have a general idea of how Greenstone works and how the
directory structure is setup.
To access the demo ghandi collection please visit:
One can search the collection by entering keywords in the search field.
Searches are based on 'image description' metadata.
I installed Greenstone 2.56 on my pc locally. Installed in the
/usr/local/gsdl folder which is the default for a greenstone
installation. You can download Greenstone from www.greenstone.org as
well as the installation documentation.
I created a collection called 'ghandi2' making use of the mkcol.pl
script using the following command:
/usr/local/gsdl/bin/script/./mkcol.pl -creator youremailaddress ghandi2.
Before running the script make sure that the following 2 environment
variables are set GSDLHOME and GSDLOS.
After the collection was created I copied all the ghandi images to the
import directory (/usr/local/gsdl/collect/ghandi2/import/.)
I've build the collection: /usr/local/gsdl/bin/script/./build
Apache was started up. /usr/local/apache/./apachect1 start (Refer to
the greenstone developers guid to configure apache httpd.conf file)
The collection was now visible using Mozilla as my browser on my pc
When one views the collection you'll see thumbnail images, if you click
on these images you'll be taken to the original document with its
Please take note that the thumbnails gets auto generated by the
There does not exist any contextual metadata yet, so to create image
specific metadata was the next step and I used GLI.
GLI is a Java GUI application and is run using the gli.sh shell script:
cd /usr/local/gsdl/gli ./gli.sh (Take note you have to be in the gli
directory to be able to issue the script)
Make sure that your greenstone GSDLHOME and GSDLOS varaibles are set
before envoking the gli application. (These variables are supposed to be
set up on installation but with me it was not the case)
Java 1.4.2 or higher should be installed as well.
Once the GLI has loaded you need to open the collection you want to work
Click <File> and then <Open>, choose the collection you would like to
If a metadata set has not yet been specified, you can do so now...I
chose Dublin Core for this basic image collection Click the <Enrich>
Select an image on from the left pane. Select the element you want to
capture the metadata for on the right pane Insert a value for the
element and click <Append>. If you would like to replace a value rather,
just click the <Replace> button instead.
After you've added the metadata for the files, save the file and then
click the <Create> tab.
Build the collection.
Metadata does now exist which can be used to be displayed as well as
The Collection Configuration file Each collection has a collection
configuration file which can be found in
This file can be manipulated thru the GLI or just using a text editor.
In brief I've altered the collect.cfg file to include Description
Creator Date Rights management
data which will be displayed next to each thumbnail
There will also be a description of the original image when the
thumbnail is clicked.
Searching the collection is based on the 'image description' metadata
that was captured during the 'metadata process' described earlier
The search functionality was set up using the GLI
open the collection
select the <Design> tab
select <Browsing classifiers>
select the AZList classifier
select the <Configure classifier> button
type dc.Description in the metadata field. (Specifying that the search
is based on the Description metadata)
build the collection
change the collect.cfg file if you want to display any metadata on your
collection pages. Take note the the AZList classifier should be listed
as the first classifier in the collect.cfg file, otherwise the data
might not be displayed.
Local collection to the server
After completing the above steps, I decided to upload the collection on
to the server. (greenstone.unisa.ac.za). I just had to copy the
collection folder from my pc to the server (I used ssh to establish a
connection to the server and then used scp)
Visit http://greenstone.unisa.ac.za/cgi-bin/library to see the 'demo'
Excellent documentation is available at www.greenstone.org
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Please refer to http://www.unisa.ac.za/disclaimer for full details.
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