Michael P. Gerlek wrote:
Bruce-
It is not clear to me what sort of "study" you would need to convince
you, as the ISO standard for encoding data into the JPEG-2000 file
format is by construction mathematically and numerically lossless
process. (Indeed, "compression", i.e. throwing away bits
IMO:
Michael,
My concern as a custodian of significant image resources is to ensure that
the integrity of this data is protected and available for future
analytical use by ourselves and by the public.
As an example, to conduct multi-temporal analysis of 'imagery' to help
understand big pictu
Bruce-
It is not clear to me what sort of "study" you would need to convince
you, as the ISO standard for encoding data into the JPEG-2000 file
format is by construction mathematically and numerically lossless
process. (Indeed, "compression", i.e. throwing away bits so as to
further reduce stora
Lucena, Ivan <[EMAIL PROTECTED]> writes:
>
> Dear Gilberto,
>
Just wanted to let folks know that there exists a trial implementation of raster
support in PostGIS at
http://svn.refractions.net/postgis/branches/gSoC2007_raster/
This was a Google Summer of Code project by Xing Lin.
THK
__
Thanks Tim,
Bruce
-
Tim Keitt <[EMAIL PROTECTED]>
Sent by: [EMAIL PROTECTED]
24/02/08 07:43 AM
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[OSGeo-Discuss] Re: Image Handling in RDBMS
Lucena, Ivan <[EMAIL PROTECTED]> writes:
>
> Dear Gilberto,
>
Just wan
See also the FIF formats from the late 1990s, there was at least on
validated system using that fractal information format / f image f
that was released publicly before the terrorist american nsa jacked
the patents and disappeared the company. Files were even deleted by
"authority" from one of my b
It is not possible to *prove* a mathematical relationship by example. One would
have to study the set of all possible images in the world and make sure they
have no loss in order to effectively prove the claim. On the other hand you can
*disprove* it by providing a single counterexample. That i
Ed,
How is it going Neighbor? (*)
Yes, by this report here:
http://www.oracle.com/technology/products/spatial/pdf/georaster_scale_twp.pdf
it looks like there is much more than meets the yes on the performance
issue. Cote: "The Oracle 10g RAC nodes in a NAS configuration shared the
global dis
Dear Gilberto,
Unfortunately I could not follow the discussion since my last reply to
Bruce. I spent more time on air than on land in the last three days.
I believe that your message is a reply to Paul Ramsey message:
http://lists.osgeo.org/pipermail/discuss/2008-February/003202.html. Am I
c
IMO:
Thanks for the reply Traian,
I don't mean to be dismissive of this report, but I was hoping for
something more definitive to prove that 'lossless' JPEG compressions did
indeed protect the integrity of the data..
Perhaps its just my ignorance, but I was hoping for something along the
li
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