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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>I think we were talking about the easiest
way to implement saving space. :]<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>I was trying to point out (and maybe Paul
was also) that ease of implementation (now or in the future) should be a factor
the government chooses when selection a file format/technology for data storage
and distribution to the public.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>There are a number of other factors, as
MPG mentioned. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>This has been a really good discussion,
and I will try to get some content about open file formats on the wiki as
Arnulf requested. Maybe next week?<o:p></o:p></span></font></p>
<div>
<p class=MsoNormal><strong><b><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'>Landon</span></font></b></strong><font
color=navy><span style='color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Office Phone Number: (209) 946-0268</span></font><font
color=navy><span style='color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Cell Phone Number: (209) 992-0658</span></font><font
color=navy><span style='color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=navy face="Times New Roman"><span
style='font-size:12.0pt;color:navy'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=navy face="Times New Roman"><span
style='font-size:12.0pt;color:navy'> </span></font><o:p></o:p></p>
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<p class=MsoNormal style='margin:0in;margin-bottom:.0001pt'><b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma;font-weight:bold'>From:</span></font></b><font
size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
discuss-bounces@lists.osgeo.org [mailto:discuss-bounces@lists.osgeo.org] <b><span
style='font-weight:bold'>On Behalf Of </span></b>Bob Basques<br>
<b><span style='font-weight:bold'>Sent:</span></b> Friday, August 21, 2009
11:28 AM<br>
<b><span style='font-weight:bold'>To:</span></b> <st1:PersonName w:st="on">OSGeo
Discussions</st1:PersonName>; Ivan Lucena<br>
<b><span style='font-weight:bold'>Subject:</span></b> RE: [OSGeo-Discuss]
OpenFile FormatsandProprietaryAlgorithms[SEC=UNCLASSIFIED]</span></font><o:p></o:p></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p><font size=3 face="Comic Sans MS"><span style='font-size:12.0pt;font-family:
"Comic Sans MS"'>All,</span></font> <o:p></o:p></p>
<p class=MsoNormal style='margin:0in;margin-bottom:.0001pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<p><font size=3 face="Comic Sans MS"><span style='font-size:12.0pt;font-family:
"Comic Sans MS"'>Can someone remind me again, are we talking about saving
space, or making it easier to implement something . . . :c)</span></font>
<o:p></o:p></p>
<p class=MsoNormal style='margin:0in;margin-bottom:.0001pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<p><font size=3 face="Comic Sans MS"><span style='font-size:12.0pt;font-family:
"Comic Sans MS"'>I personally prefer nice simple internal pyramided tiles with
indexing, about 10% extra space, and very good performance. </span></font><o:p></o:p></p>
<p class=MsoNormal style='margin:0in;margin-bottom:.0001pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<p><font size=3 face="Comic Sans MS"><span style='font-size:12.0pt;font-family:
"Comic Sans MS"'>Someone earlier in this thread spoke about some of these
technologies being somewhat obsolete what with the new network and bandwidth
speeds available for publishing.</span></font> <o:p></o:p></p>
<p class=MsoNormal style='margin:0in;margin-bottom:.0001pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<p><font size=3 face="Comic Sans MS"><span style='font-size:12.0pt;font-family:
"Comic Sans MS"'>bobb</span></font> <o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:0in;margin-right:0in;margin-bottom:
12.0pt;margin-left:0in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<p><font size=3 face="Times New Roman"><span style='font-size:12.0pt'><br>
<br>
>>> "Lucena, Ivan" <ivan.lucena@pmldnet.com> wrote:<o:p></o:p></span></font></p>
<div style='border:none;border-left:solid #050505 1.0pt;padding:0in 0in 0in 5.0pt;
margin-left:11.25pt'>
<p style='background:#F3F3F3'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>But you can't compress data types other than byte in
JPG. Can you do that in JP2K?<br>
<br>
<br>
> -------Original Message-------<br>
> From: <st1:PersonName w:st="on">Landon Blake</st1:PersonName>
<lblake@ksninc.com><br>
> Subject: RE: [OSGeo-Discuss] Open
FileFormatsandProprietaryAlgorithms[SEC=UNCLASSIFIED]<br>
> Sent: Aug 21 '09 12:42<br>
> <br>
> Paul,<br>
> <br>
> I was wondering the same thing.<br>
> <br>
> It seems a little like choosing to drive a Honda Accord, or a
Ferrari.<br>
> The Ferrari is a lot faster and comes with a better looking
trophy wife<br>
> (or husband), but the Honda is a lot easier to fix. (Try
finding an<br>
> affordable Ferrari mechanic in <st1:place w:st="on"><st1:City
w:st="on">Stockton</st1:City>, <st1:State w:st="on">California</st1:State></st1:place>.)<br>
> <br>
> To tie this back into our original discussion, it seems like
the<br>
> government should be choosing to drive a Honda Accord when it
can,<br>
> instead of the Ferrari.<br>
> <br>
> I guess you'd really have to crunch the numbers and see if the
savings<br>
> in bandwidth/disk space costs were really worth the compression
savings<br>
> that result from a proprietary compression scheme
("wavelet black<br>
> magic").<br>
> <br>
> The problem with this is a lot of the benefits that come from
the Honda<br>
> Accord (open image format + open compression algorithm) aren't
easily<br>
> calculated in dollars and cents.<br>
> <br>
> Still, this speaks to an important truth I have discovered in
open<br>
> source development: Simple is better, even when it isn't
necessarily<br>
> faster and smaller.<br>
> <br>
> I'd rather have code that I can understand, or a file format that
a<br>
> programmer in 20 years will understand, than a Ferrari you
can't drive<br>
> unless you have a PHD and did a thesis on wavelet compression.
:]<br>
> <br>
> Landon<br>
> Office Phone Number: (209) 946-0268<br>
> Cell Phone Number: (209) 992-0658<br>
> <br>
> <br>
> <br>
> -----Original Message-----<br>
> From: discuss-bounces@lists.osgeo.org<br>
> [mailto:discuss-bounces@lists.osgeo.org] On Behalf Of Paul
Ramsey<br>
> Sent: Friday, August 21, 2009 10:36 AM<br>
> To: <st1:PersonName w:st="on">OSGeo Discussions</st1:PersonName><br>
> Subject: Re: [OSGeo-Discuss] Open File<br>
> FormatsandProprietaryAlgorithms[SEC=UNCLASSIFIED]<br>
> <br>
> So hung up on wavelets, we are.<br>
> <br>
> Internally tiled TIFF with JPEG compression and similarly
formatted<br>
> internal overviews can achieve 10:1 compression rates without<br>
> noticeable image quality reductions, and as an added bonus can
be<br>
> decompressed a heck of a lot faster than wavelet-based formats.
The<br>
> wavelet stuff is k00l, in that there is no need for an overview<br>
> pyramid (it's implicit in the compression math) and much higher<br>
> compression rates can be achieved. But operationally, you can
go a<br>
> long way with the more primitive (open image format + open
compression<br>
> algorithm) approach.<br>
> <br>
> P.<br>
> _______________________________________________<br>
> Discuss mailing list<br>
> Discuss@lists.osgeo.org<br>
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> <br>
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