IMO:
Michael,
Thanks for the comments on this thread.
I've had a couple of private emails expressing interest in the outcome, so
I'll continue this conversation in public, rather than moving it offline.
One of the problems that I have is that I understand that JPEG 2000 can be
'lossy' or 'n
Michael P. Gerlek writes:
>
> Someday I'd like to try and open a dialog with the OpenJP2 developers
> about this topic, but last I heard they were completely
> uninterested in supporting GB-sized datasets.
>
Michael
H . Maybe the time is right :-)
http://groups.google.com/group/openjp
On Mon, Feb 25, 2008 at 09:26:16PM -0500, Ed McNierney wrote:
> Christopher -
>
> Let me add the "evidence" that I have found that reducing the strip size
> in LZW-compressed GeoTIFFs has, not surprisingly, a VERY large effect on
> read performance - about a factor of 10 in the particular cases I
Christopher -
Let me add the "evidence" that I have found that reducing the strip size
in LZW-compressed GeoTIFFs has, not surprisingly, a VERY large effect on
read performance - about a factor of 10 in the particular cases I used.
That indicates that the data you report might not be a good 'order
On Mon, Feb 25, 2008 at 09:04:59PM -0500, Ed McNierney wrote:
> Christopher -
>
> You will very likely find that using different LZW compression options
> (particularly setting a small strip size) will slightly degrade compression
> performance while significantly improving read time. While I t
Christopher -
You will very likely find that using different LZW compression options
(particularly setting a small strip size) will slightly degrade compression
performance while significantly improving read time. While I think your test
data are valid, they only address one of many possible c
On Mon, Feb 25, 2008 at 04:31:34PM -0800, Michael P. Gerlek wrote:
> Yup: Kakadu is not Open Source, as per the OSI definition of the term.
> The only FOSS package I know of is OpenJpeg2000 (or something like
> that); unfortunately, however, it is not suitable for geo-sized imagery
> last time I lo
Yup: Kakadu is not Open Source, as per the OSI definition of the term.
The only FOSS package I know of is OpenJpeg2000 (or something like
that); unfortunately, however, it is not suitable for geo-sized imagery
last time I looked.
Not a week goes by that I do not pause, look out my window, and si
Hello Tyler,
I was a little quiet in the last two months. As we already wrote on the
mailing list we are very interested in creating a Romanian local
chapter. I'm saying "we" as the local community gathered around
http://www.geo-spatial.org. More about this topic was posted at
http://wiki.osg
Is anyone on this list interested in or working on local chapter work
in Israel or Romania?
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On Mon, Feb 25, 2008 at 09:27:22AM -0800, Michael P. Gerlek wrote:
> Bruce-
>
> Again, I'm not sure how to convince you of this... JP2 is inherently
> lossless just like GeoTIFF is; what arguments do you / would you find
> persuaive to use GeoTIFF? (alternatively, what do you use now that you
>
Bruce-
Again, I'm not sure how to convince you of this... JP2 is inherently
lossless just like GeoTIFF is; what arguments do you / would you find
persuaive to use GeoTIFF? (alternatively, what do you use now that you
trust?)
[feel free to take this to private email, this is probably a bit
eso
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