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Subject: RE: Point Grey Flea3 areaDetector ImageJ Viewer Problems
From: Mark Rivers <rivers@cars.uchicago.edu>
To: Hinko Kocevar <hinkocevar@gmail.com>, Zachary Brown <zab8@cornell.edu>
Cc: "tech-talk@aps.anl.gov" <tech-talk@aps.anl.gov>
Date: Fri, 2 May 2014 22:02:29 +0000
The problem Hinko describes is different.  That problem is just that the Andor images are 16-bit and the default ImageJ brightness and contrast control does not display them correctly.  Just press Cntl+Shift+C to bring up the brightness and contrast control and hit Auto and it will display correctly.  Or you can just use the brightness and contrast sliders.

Mark

________________________________
From: tech-talk-bounces@aps.anl.gov [tech-talk-bounces@aps.anl.gov] on behalf of Hinko Kocevar [hinkocevar@gmail.com]
Sent: Friday, May 02, 2014 2:02 PM
To: Zachary Brown
Cc: tech-talk@aps.anl.gov
Subject: Re: Point Grey Flea3 areaDetector ImageJ Viewer Problems

When testing Andor camera couple of days ago and also using ImageJ  encountered the similar problem. The ImageJ would show the image but it was all white. After some clicking around the ImageJ I’ve managed to get the data visualised by 1) setting some LUT and 2) invoking the dialog for edit LUT (I do not have the ImageJ at hand to give you exact path in the menu to reach this). As soon as the dialog would popup I could see the image.
Of course EPICS_CA_MAX_ARRAY_BYTES was set to a high value, too.

HTH,HInko

On 02 May 2014, at 20:00, Zachary Brown <zab8@cornell.edu<mailto:zab8@cornell.edu>> wrote:

 From more testing:

A camonitor on PG1:image1:ArrayData shows that the values in the array are changing as the camera is moved around, so the array is getting updated.

ImageJ still shows a zero-value array.  The image shown from the plugin is 1280x1024 (8-bit) as it should be, but no pixel values.

The Array Counter in for the StdArray increases with the image count, but I did notice that the Unique ID for each array does not change (not sure if this is relevent, have not paid attention to this parameter before).

-Zachary Brown, John Dobbins


On Fri, May 2, 2014 at 1:02 PM, Zachary Brown <zab8@cornell.edu<mailto:zab8@cornell.edu>> wrote:
Hello,

I am using the new Point Grey pre-built in windows 7 x64.  I am having issues streaming the images to the ImageJ areaDetector plugin.

I am able to acquire images in all image modes (single, multiple, continuous) and save the images using the TIFF plugin, but the NDStdArrays plugin does not seem to be getting any data, so the callbacks do not update, so the ImageJ plugin does not stream.

PG1:cam1:ArrayCallbacks is set to Enable
PG1:image1:EnableCallbacks is set to Enable

If any more information would be helpful, please contact me, thank you,

-ZB




References:
Re: Point Grey Flea3 areaDetector ImageJ Viewer Problems Zachary Brown
Re: Point Grey Flea3 areaDetector ImageJ Viewer Problems Hinko Kocevar

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