Found in this article:
Draw the Curtains: Gigapixel Cameras Create Highly Revealing Snapshots
[Slide Show]: Scientific American:
http://www.scientificamerican.com/article.cfm?id=gigapixel-camera-revealed
..is a reference to this web page from a company that makes the cameras
that says it takes 30-40 gigabytes to store one 10-gigabyte image:
360world - Gigapixel images:
http://360world.eu/en/services/gigapixel-images.html
Snipped paragraph:
An image of 10 gigapixels takes approximately 30-40 gigabytes of hard
drive space in PSB format. The vistas displayed on the internet consist
of 20-30.000 converted JPG images. They are arranged in 5-10 individual
layers, so the user's computer will only download and display those
relevant to the desired level of magnification. This technology allows
gigapixel vistas to display properly, even on average-spec systems.
10 giga by definition, okay, good. Add some extra control data to handle
the parsing into the "5-10 individual layers", so as to only serve up
the precision appropriate to the client side computer, okay add some
more control storage. But tripling it or quadrupling it?
--aec
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