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<div>Dear Andrii</div>
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<div>You can modify the plane size in the omero.properties file</div>
<div>The rendering engine allows to render only region of the image so that will be an option too.</div>
<div>We are hoping to have our viewer adjusted for 5.1.0 to handle large images I.e. Images that do not qualify for pyramid generation but with large planes</div>
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<div>Regards</div>
<div>Jmarie</div>
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<span style="font-weight:bold">From: </span>Andrii Iudin <<a href="mailto:andrii@ebi.ac.uk">andrii@ebi.ac.uk</a>><br>
<span style="font-weight:bold">Date: </span>Monday, 1 December 2014 17:18<br>
<span style="font-weight:bold">To: </span>Sebastien Besson <<a href="mailto:s.besson@dundee.ac.uk">s.besson@dundee.ac.uk</a>><br>
<span style="font-weight:bold">Cc: </span>OME-devel OME <<a href="mailto:ome-devel@lists.openmicroscopy.org.uk">ome-devel@lists.openmicroscopy.org.uk</a>>, Ardan Patwardhan <<a href="mailto:ardan@ebi.ac.uk">ardan@ebi.ac.uk</a>>, jburel burel <<a href="mailto:j.burel@dundee.ac.uk">j.burel@dundee.ac.uk</a>><br>
<span style="font-weight:bold">Subject: </span>Re: [ome-devel] Loading electron microscopy MRC float-point images<br>
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<div bgcolor="#FFFFFF" text="#000000">Dear Jean-Marie and Sebastian,<br>
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Thank you for the prompt reply! We are currently using the development version and for now our service will remain in development. Checks were made on both the downloaded pre-build 5.1.0 and on the one built locally from Github source.<br>
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The problem we have is that EM images are often very large, even greater than 4096x4096 and often float. Please could you point me to the code where one can turn the pyramid generation off for such images? Is it, perhaps, possible to render only a part of a
large image, say 1024x1024 slice out of 4096x4096?<br>
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Best regards,<br>
Andrii<br>
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<div class="moz-cite-prefix">On 01/12/2014 14:05, Sebastien Besson wrote:<br>
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<blockquote cite="mid:7F701EF6-16A1-4AC5-81AB-EC00668E6883@dundee.ac.uk" type="cite">
Dear Andrii,<br>
<br>
as a side-note, OMERO 5.1.0 is not released yet as the OME team is actively working<br>
on it. As a matter of fact, it is still in development and should not be used in production.<br>
Just to make sure we are not shipping non-production versions, was your sever built<br>
from the source code?<br>
<br>
Best regards,<br>
Sebastien
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<div>On 1 Dec 2014, at 13:46, Jean-Marie Burel <<a moz-do-not-send="true" href="mailto:j.burel@dundee.ac.uk">j.burel@dundee.ac.uk</a>> wrote:</div>
<br class="Apple-interchange-newline">
<blockquote type="cite">Dear Andrii<br>
<br>
When the size of plane is greater than 4kx4k, a pyramid is generated.<br>
The fact that you end up with a black square is a result of JPEG-2000 not<br>
supporting floating point images at all.<br>
We are investigating options, no candidate library found yet, we might<br>
have to turn the pyramid generation off<br>
for such images.<br>
Unfortunately in the current implementation not a parameter you can switch<br>
off.<br>
An alternative could be to increase the limit of the plane size before<br>
generating a pyramid.<br>
The image will be slower to load but you will be able to view it.<br>
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Regards<br>
<br>
Jmarie<br>
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The University of Dundee is a registered Scottish Charity, No: SC015096<br>
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<div>Dr Sébastien Besson</div>
<div>Open Microscopy Environment / Harvard Medical School</div>
<div>Wellcome Trust Centre for Gene Regulation and Expression,</div>
<div>College of Life Sciences, University of Dundee, Dow Street,</div>
<div>Dundee DD1 5EH Scotland UK Tel: (01382) 386364</div>
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<span style="font-size:10pt;">The University of Dundee is a registered Scottish Charity, No: SC015096</span></blockquote>
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<span style="font-size:10pt;">The University of Dundee is a registered Scottish Charity, No: SC015096</span>
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