"Open image sequence" significative slow down - Latest update of Fiji

[Griffa, Michele]

Dear ImageJ developers,

since the latest update of Fiji (ImageJ 2.0.0-rc-11/1.49e, Java 1.6.0_24, 64 bit on Windows 7 64 bit),
I've been experience a very significative slow down in the "Open -> image sequence" operation when opening
a stack of files, each file being a 2048 x 2048 16-bit unsigned integer TIFF image.

From a couple of minutes on the same exact machine and for the same exact stack before the update, now the operation
requires about 10 minutes.
When each file is loaded by the latest update (August 10th) of Fiji, I notice in the status bar the message "Computing min/max" which I've never noticed with previous version and I'm wondering whether that computation (I guess regarding the single file/slice) is strictly necessary or it can be skipped by some option.

Thanks a lot in advance for any suggestion/answer.

Best regards,

Michele
---------------------------------------------------------------------------------------------
Michele Griffa, PhD
Senior Research Scientist

Concrete and Construction Chemistry Laboratory
and
Center for X-Ray Analytics

Empa
Swiss Federal Laboratories for Materials Science and Technology
ETH Domain

Überlandstrasse 129
8600 Dübendorf
Switzerland

Tel [phone]
Fax [phone]
[hidden email]
www.empa.ch<http://www.empa.ch/>
www.empa.ch/x-ray<http://www.empa.ch/x-ray>

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[ctrueden]

Hi Michele,

> I've been experience a very significative slow down in the "Open ->
> image sequence" operation when opening a stack of files, each file
> being a 2048 x 2048 16-bit unsigned integer TIFF image.

A version of the same issue was reported here:
    http://fiji.sc/bugzilla/show_bug.cgi?id=899

There is a fix pending, which we plan to test and release on Monday. So
this problem should be solved very soon.

Regards,
Curtis


On Sun, Aug 10, 2014 at 10:27 AM, Griffa, Michele <[hidden email]>
wrote:

> Dear ImageJ developers,
>
> since the latest update of Fiji (ImageJ 2.0.0-rc-11/1.49e, Java 1.6.0_24,
> 64 bit on Windows 7 64 bit),
> I've been experience a very significative slow down in the "Open -> image
> sequence" operation when opening
> a stack of files, each file being a 2048 x 2048 16-bit unsigned integer
> TIFF image.
>
> From a couple of minutes on the same exact machine and for the same exact
> stack before the update, now the operation
> requires about 10 minutes.
> When each file is loaded by the latest update (August 10th) of Fiji, I
> notice in the status bar the message "Computing min/max" which I've never
> noticed with previous version and I'm wondering whether that computation (I
> guess regarding the single file/slice) is strictly necessary or it can be
> skipped by some option.
>
> Thanks a lot in advance for any suggestion/answer.
>
> Best regards,
>
> Michele
>
> ---------------------------------------------------------------------------------------------
> Michele Griffa, PhD
> Senior Research Scientist
>
> Concrete and Construction Chemistry Laboratory
> and
> Center for X-Ray Analytics
>
> Empa
> Swiss Federal Laboratories for Materials Science and Technology
> ETH Domain
>
> Überlandstrasse 129
> 8600 Dübendorf
> Switzerland
>
> Tel [phone]
> Fax [phone]
> [hidden email]
> www.empa.ch<http://www.empa.ch/>
> www.empa.ch/x-ray<http://www.empa.ch/x-ray>
>
> Diese Mitteilung ist ausschliesslich für die als Empfänger aufgeführte
> Person(en) oder Firma bestimmt. Sie kann persönliche und/oder vertrauliche
> Informationen enthalten. Sollten Sie diese Mitteilung irrtümlicherweise
> erhalten haben, bitten wir Sie, uns umgehend per E-Mail zu informieren,
> sämtliche Ausdrucke zu vernichten und die E-Mail-Dateien zu löschen.
>
> This message is intended for the exclusive use of the individual(s) or
> entity to whom it is addressed. It may contain information that is
> privileged and/or confidential. Should you have received this message
> erroneously, please notify us immediately by e-mail, destroy any printouts
> and delete all electronic files contained in this message.
>
> -----------------------------------------------------------------------------------------------
>
>
> --
> ImageJ mailing list: http://imagej.nih.gov/ij/list.html
>

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