: Controlling uniblitz.

[Goldsmith, Noel]

Jan Wrote,

Date:    Tue, 4 Apr 2006 13:35:28 +0200
From:    Jan Peychl <[hidden email]>
Subject: Uniblitz shutter control  using image J ?

Dear all,

following the discussion about Coolsnap driver that works with image J,
I wonder
if there is any chance to drive Uniblitz shutter with image J ? Does
anybody have
an experience with such solution ? Any suggestion would very welcome .
Thank you very much for your answers in advance.

Jan

xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Jan Peychl, M.D., Ph.D.
Leader
Light Microscopy Facility
Max Planck Institute of Molecular Cell Biology and Genetics
Pfotenhauerstrasse 108
01307 Dresden
Germany

Tel.: [phone]
Fax:  [phone]
web:  www.mpi-cbg.de


Noel Replies.
We control a number of serial port items from ImageJ using the RXTX library
package. We do it in OSX (now 10.4.6) on G5 towers. We use the Keyspan twin
serial USB adaptors. We have LUDl MAC 2002 and MAC 5000 controllers. (the
MAC stands for multi axis controller). The Ludl controllers and stages are
very good, and controlling them is straightforward. The controllers are
modular, you add modules until your either fill the box up or do your job.
Have a look at the LUDL web site.
We also control a Leica MZ16 with a motor focus drive. And also read a few
manual stages fitted with Mitutoyo digital micrometer drums.
So If you know the serial port commands required, the baud rate, the number
of bits and the parity etc etc, and can set up a mechanism to send the right
strings out the serial port, you will be happy. This is what we do and we
are happy.
If you need any more detail send me an email directly.
Regards
 Noel


Noel Goldsmith
Aircraft Forensic Engineering
Air Vehicles Division
DSTO
506 Lorimer Street
Port Melbourne
Vic 3207
AUSTRALIA
Phone [phone]
FAX [phone]
Email [hidden email]



> From: IMAGEJ automatic digest system <[hidden email]>
> Reply-To: ImageJ Interest Group <[hidden email]>
> Date: Wed, 5 Apr 2006 00:00:20 -0400
> To: "[hidden email]" <[hidden email]>
> Subject: IMAGEJ Digest - 3 Apr 2006 to 4 Apr 2006 (#2006-93)
>
> 108

[Wayne Su]

Hello,

I am looking for the Otsu filter that have 2 or more thresholds. Anyone
happens to know that, please let me know. Thanks in advance.


Wayne
--

Wayne Su
IT Coordinator

RM211-828 W 10th Ave
VGH Research Pavilion
Centre for Complex Disorders,
Vancouver, BC
V5Z 1L8

Tel: [phone] ext 61705
Fax: [phone]

[Gabriel Landini]

On Thursday 06 April 2006 22:45, Wayne Su wrote:
> I am looking for the Otsu filter that have 2 or more thresholds. Anyone
> happens to know that, please let me know. Thanks in advance.

There are 2 different ways to look at the problem:

1. To extend the algorithm to more than 2 levels:

http://www.iis.sinica.edu.tw/JISE/2001/200109_01.pdf 2.

2. To sub-segment each phase of the previously segmented image

http://dx.doi.org/10.1109/83.679444

Obviously these methods do not produce the same result.

If you implement method 1, please let me know. This would a be very useful
plugin.

Method 2 is trivial, just reapply otsu's algorithm to the sub-histograms of
the image.

Cheers,

Gabriel