Re: Why does a 10-gigapixel image require 30 gigabytes of hard drive space??

[John Jones <chianime@xxxxxxxxx>]

Not sure but my guess would be 1 byte per color (R, G, and B) per pixel to
allow for 256 shades of color depth/color/pixel.

On Tue, Jan 11, 2011 at 6:44 AM, Alan <cfuture@xxxxxxxxxxx> wrote:

> 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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