This doesn't quite answer the question but addresses the issue of what is worth
stealing. We tried some comparative print tests of raw and derivative jpeg
images. Raw images were uncompressed tiff approximately 4000 pixels square, the
scaled and compressed images were scaled to 1600 pixels and jpeg compressed
using Photoshop setting 8. The resulting images were about 1 MB in file size.
We printed a range of sizes from 4 x 6 up to 24 x 36 - postcard to poster
size. In blind tests most people couldn't tell the difference even at the
largest size, only the trained eye could reliably differentiate and not without
close examination. While you might expect this result for the smaller prints,
the poster size print result was interesting. The largest size was printed to
canvas which helped in disguising the artefacts and used a Light Jet printer.
-nik
Nik Honeysett
Head of Administration
J. Paul Getty Museum
tel: 310-440-7346
fax: 310-440-7751
nhoneysett at getty.edu
Real, Will RealW at CarnegieMuseums.Org 9/6/2007 6:19 AM
Matt's comment about image size leads me to wonder what members of the
MCN community think is the biggest possible image that would not be
worth stealing for financial gain. Here we have settled on 500 pixel
images, but that was fairly arbitrary.
Will Real
Carnegie Museum of Art
-Original Message-
From: mcn-l-bounces at mcn.edu [mailto:mcn-l-boun...@mcn.edu] On Behalf Of
Morgan, Matt
Sent: Wednesday, September 05, 2007 5:55 PM
To: Museum Computer Network Listserv
Subject: Re: [MCN-L] Pan Zoom Server
Do we know that users like zooming? Or if certain particular groups of
users like zooming?
I often find zooming irritating. I would mostly rather have a single,
somewhat larger full view of an image than to zoom in on just a piece of
the image, even if the detail is not as good. Zooming takes more clicks
drags, and then I end up with something where I can't really see the
work.
I just wonder sometimes if the effort we put into zoom is worthwhile.
Should we just make the images bigger? I know that ours could be a lot
bigger before it's possible to get any financial gain by stealing them.
Thanks,
Matt
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