<div dir="ltr"><span style="font-size:12.8px">Dear OpenSlide Community,</span><div style="font-size:12.8px"><br></div><div style="font-size:12.8px">I am following this discussion very closely, because the file format of the PreciPoint M8 SlideScanner (*.vmic) is based on DeepZoom image pyramids in a zip container, too.<br><div class="gmail_extra">We see largely the same advantages mentioned by John Cupitt. Our customers appreciate the quick and easy way to create static websites out of their scans.</div><div class="gmail_extra">On the other hand, we test OME TIF (and similar tif file formats) how well they work with openslide.</div><div class="gmail_extra">Is there a list of available OpenSlide Viewers (like the SmartZoomViewer) for speed comparison?</div><div class="gmail_extra"><br></div><div class="gmail_extra">Best regards</div><div class="gmail_extra"><br></div><div class="gmail_extra">Josef</div></div><div class="gmail_extra"><div><div class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr">__________________________________<br><br><b>Josef Bauer </b>(Dipl. Ing.(FH))<br><div>Geschäftsführung<br><br></div><div>Tel: <a value="+4981619769793">+49 (0)8161 976979-3</a><br>Fax: <a value="+4981619769791">+49 (0)8161 976979-1</a><br>Mail: <a href="mailto:josef.bauer@precipoint.de" style="color:rgb(17,85,204)" target="_blank">josef.bauer@precipoint.de</a></div><div><br></div><div><b style="font-size:12.8px">M8 Scanner Demo Units (Product Year 2015) for sale: <a href="tel:16900" value="+4916900" target="_blank">16900</a> EUR</b><br>__________________________________<br> <br>PreciPoint GmbH<br>Alois-Steinecker-Str. 22<br>85354 Freising bei München<br><span style="font-family:arial,helvetica,sans-serif"><a href="http://www.precipoint.de/" style="color:rgb(17,85,204)" target="_blank">http://www.precipoint.de/</a></span><br><span style="font-family:arial,helvetica,sans-serif"><a href="http://google.com/+PrecipointDe" style="color:rgb(17,85,204)" target="_blank"><span style="line-height:13px">google.com/+PrecipointDe</span></a><br><br></span><ul style="margin:0px;padding:0px;list-style:none outside none;width:960px;color:rgb(255,255,255);font-family:Arial;font-size:12px"><div style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px"><span style="font-family:arial,helvetica,sans-serif">Geschäftsführer:</span></div><div style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px"><span style="font-family:arial,helvetica,sans-serif">Helmut Krönauer (Dipl. Ing. (FH))<br>Josef Bauer (Dipl Ing. (FH))</span></div><div style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px"><span style="font-family:arial,helvetica,sans-serif">Fritz Müller (Dipl Inf.)</span></div><div style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px"><span style="font-family:arial,helvetica,sans-serif"><br></span></div><div style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px"><div style="font-size:12.8px"><span style="font-family:arial,helvetica,sans-serif">Amtsgericht München</span></div><div style="font-size:12.8px"><span style="font-family:arial,helvetica,sans-serif">HRB 69798</span></div><div style="font-size:12.8px"><span style="font-family:arial,helvetica,sans-serif">UST ID: DE 129351217</span></div></div></ul><br><font color="#888888"></font></div></div></div></div></div></div></div></div></div></div>
<br><div class="gmail_quote">2015-11-18 10:08 GMT+01:00 Priv.-Doz. Dr. M. Weihrauch via openslide-users <span dir="ltr"><<a href="mailto:openslide-users@lists.andrew.cmu.edu" target="_blank">openslide-users@lists.andrew.cmu.edu</a>></span>:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">Thanks for the fruitful discussion! And yes, for us the requirements (as<br>
in one of my last mails) were serving static images for educational<br>
purposes (no image analysis) for thousands of customers out of single<br>
files. Our apps Smart Histology, Smart Hematology, Smart Microscope have<br>
been downloaded >200,000 times (mostly the free test version<br>
unfortunately :), also we have many Universities and some learning<br>
platforms connected to our services and the tile-servers still look<br>
pretty bored.<br>
<br>
Best regards<br>
<br>
Martin<br>
<div class=""><div class="h5"><br>
Am 18.11.2015 um 09:44 schrieb John Cupitt via openslide-users:<br>
> Hi Dmitry,<br>
><br>
> On 17 November 2015 at 23:05, Dmitry Fedorov <<a href="mailto:fedorov@ece.ucsb.edu">fedorov@ece.ucsb.edu</a>> wrote:<br>
>> This is a very interesting discussion and I wanted to add my 5 cents to it.<br>
>> John's arguments seem extremely compelling for a static view of the data. On<br>
>> the other hand if any processing may have to happen to the original data<br>
>> prior to visualization then using pyramidal TIFF may become more<br>
>> interesting. We are developing BisQue which serves life-sciences image data<br>
> I agree, if you are doing server-side image processing then pyramidal<br>
> tiff is a good storage format. As you say, szi is really for serving<br>
> static images.<br>
><br>
>>> Serving a deepzoom client from a pyramidal tiff on a server is very<br>
>>> slow and is rather difficult to implement. Serving a deepzoom client<br>
>>> from a huge directory tree is hard to manage on Windows and is rather<br>
>>> inefficient with storage.<br>
>> I disagree that reading tiles from a pyramidal tiff is very slow, it's is<br>
>> obviously slower, but with required processing it's not much slower. We can<br>
> I probably should have said expensive rather than slow. You can<br>
> certainly serve deepzoom clients from pyramidal tiff with good latency<br>
> if you have a fast enough server, but it will become expensive if you<br>
> want to support large numbers of simultaneous users.<br>
><br>
> You can serve szi with almost zero server CPU load, though obviously<br>
> there will still be disk and bandwidth costs to consider.<br>
><br>
> John<br>
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><br>
<br>
<br>
</div></div><span class="im">--<br>
---------------------------------<br>
Priv.-Doz. Dr. med. Martin Weihrauch<br>
Facharzt für Innere Medizin,<br>
Hämatologie und internistische Onkologie<br>
Ärztlicher Geschäftsführer des<br>
MVZ der Uniklinik Köln<br>
50924 Köln<br>
Tel: <a href="tel:0221-47886615" value="+4922147886615">0221-47886615</a><br>
Fax: <a href="tel:0221-47886616" value="+4922147886616">0221-47886616</a><br>
<br>
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