<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On Thu, Oct 2, 2014 at 9:55 AM, Jukka Rahkonen <span dir="ltr"><<a href="mailto:jukka.rahkonen@mmmtike.fi" target="_blank">jukka.rahkonen@mmmtike.fi</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class="">Rahkonen Jukka (Tike <jukka.rahkonen <at> <a href="http://mmmtike.fi" target="_blank">mmmtike.fi</a>> writes:<br>
<br>
<br>
> > True, a way to improve things might be to specify -co PREDICTOR=2. Should<br>
> > apply to both LZW and DEFLATE.<br>
> > This is one of the filter that might be used by PNG, except that PNG has<br>
different<br>
> > filters, so it will eventually beat TIFF deflate.<br>
><br>
> Not a bad suggestion.<br>
><br>
> Original 424 MB<br>
> DEFLATE without predictor 380 MB<br>
> DEFLATE with -co predictor=2 280 MB<br>
<br>
<br>
</span>One more test with LZW<br>
<br>
Without predictor 474 MB<br>
With -co predictor=2 307 MB<br>
<br>
Is there something that prevents changing the default to "predictor=2" from<br>
the current default value "1"?<br></blockquote><div><br></div><div>Interesting... wondering how much the predictor affects decoding speed though (it is</div><div>a common case to have to compress once, and read many times out of the</div><div>compressed file)</div><div><br></div><div>Cheers</div><div>Andrea</div><div> </div></div>-- <br><div dir="ltr"><div><div><div>==</div><div><div>GeoServer Professional Services from the experts! Visit</div><div><a href="http://goo.gl/NWWaa2" target="_blank">http://goo.gl/NWWaa2</a> for more information.</div></div><div>==</div></div><div><br></div></div><div>Ing. Andrea Aime <br></div><div>@geowolf</div><div>Technical Lead</div><div><br></div><div>GeoSolutions S.A.S.</div><div>Via Poggio alle Viti 1187</div><div>55054 Massarosa (LU)</div><div>Italy</div><div>phone: +39 0584 962313</div><div>fax: +39 0584 1660272</div><div>mob: +39 339 8844549</div><div><br></div><div><a href="http://www.geo-solutions.it" target="_blank">http://www.geo-solutions.it</a></div><div><a href="http://twitter.com/geosolutions_it" target="_blank">http://twitter.com/geosolutions_it</a></div><div><br></div><div><p><span lang="IT"><font size="1"><b>AVVERTENZE AI SENSI DEL D.Lgs. 196/2003</b></font></span></p><p><span lang="IT"><font size="1">Le informazioni contenute in questo messaggio di posta elettronica e/o nel/i file/s allegato/i sono da considerarsi strettamente riservate. Il loro utilizzo è consentito esclusivamente al destinatario del messaggio, per le finalità indicate nel messaggio stesso. Qualora riceviate questo messaggio senza esserne il destinatario, Vi preghiamo cortesemente di darcene notizia via e-mail e di procedere alla distruzione del messaggio stesso, cancellandolo dal Vostro sistema. Conservare il messaggio stesso, divulgarlo anche in parte, distribuirlo ad altri soggetti, copiarlo, od utilizzarlo per finalità diverse, costituisce comportamento contrario ai principi dettati dal D.Lgs. 196/2003.</font></span></p><p><span lang="IT"><font size="1"> </font></span></p><p><font size="1">The information in this message and/or attachments, is intended solely for the attention and use of the named addressee(s) and may be confidential or proprietary in nature or covered by the provisions of privacy act (Legislative Decree June, 30 2003, no.196 - Italy's New Data Protection Code).Any use not in accord with its purpose, any disclosure, reproduction, copying, distribution, or either dissemination, either whole or partial, is strictly forbidden except previous formal approval of the named addressee(s). If you are not the intended recipient, please contact immediately the sender by telephone, fax or e-mail and delete the information in this message that has been received in error. The sender does not give any warranty or accept liability as the content, accuracy or completeness of sent messages and accepts no responsibility for changes made after they were sent or for other risks which arise as a result of e-mail transmission, viruses, etc.</font></p></div><div><br></div><div>-------------------------------------------------------</div></div>
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