From what I understand in the NPG case it was all accomplished using an established, readily available, and totally automated tool to reconstruct high-res images from Zoomify tiles, all using data that is visible in the source code, and files in a named directory structure (and one I don't think you can change).
But if you did a more bespoke tool and/or hid your urls more cleverly then that would have to be a major deterrent. Even though technically someone would be able to grab them (either underlying files or screen grab), the thought of manually doing this should be daunting enough to most potential 'thieves', surely?
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James Morley [log in to unmask]
Website Manager Tel. +44 (0)20 8332 5759
Royal Botanic Gardens, Kew www.kew.org
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________________________________________
From: Museums Computer Group [[log in to unmask]] On Behalf Of Dan Zambonini [[log in to unmask]]
Sent: 23 September 2009 08:55
To: [log in to unmask]
Subject: Re: BBC Desperate Romantics paintings
> As a side issue, you rate it 10 for not using Silverlight and -1 for
> using Flash over JS.
> But have you (or anyone) found a good JS solution for doing similar
> things (progressive zoom)?
The (bespoke) JS zoom tool we built for the National Gallery does
progressive zoom, and is also fairly accessible (has keyboard shortcuts,
degrades gracefully):
http://www.nationalgallery.org.uk/paintings/vincent-van-gogh-sunflowers
> My guess is that any tool of this kind will need access to a folder
> where the images are - which are in this case open to exploitation,
> unless they were stored as binaries objects in a DB.
There is NO way of stopping the exploitation; if you have to display the
individual tiles to the end user, then they can screen-grab them and
re-assemble them into the larger file (like in the Wikipedia case, as far as
I understand it), no matter how they are stored/transmitted/displayed.
Putting any attempts at preventative measures into these tools, which might
aversely affect performance or usability for the vast majority of 'legal'
users, seems (to me) to be a bad idea.
Just my 2p.
Dan
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Dan Zambonini
Box UK
Internet Development and Consultancy
t: +44 (0)29 2022 8822
f: +44 (0)29 2022 8820
e: [log in to unmask]
w: http://www.boxuk.com
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