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Re: Stack Align Problem

Posted by karenacollins on Jul 23, 2013; 11:14pm
URL: http://astroimagej.170.s1.nabble.com/Stack-Align-Problem-tp70p83.html

Hi - I set my Mac up  with the exact same versions of 32-bit OS, AIJ, IJ, and Java that you reported, and I have not been able to recreate the problem where no apertures are being placed when left-clicking on alignment stars. I can duplicate the "Error reading apertures file" if I remove my preferences file, start AIJ, and click on the "draw all stored apertures in overlay" button before defining any aperture locations. This is not a bug since no apertures have been defined before clicking the button to display apertures. However, the error message is incorrect, and I will fix that to say "No apertures stored".

Back to the original problem. Since this is apparently not an installation or platform dependent issue, there are only a couple of other things I can think of to move forward. The easiest is to first remove or name your AIJ preferences file. First close AIJ completely. Then remove/rename the file. On a Mac, the file is located at:
<username>/Library/Preferences/AIJ_Prefs.txt
Now restart AIJ and try to align the images again. When you close AIJ, a new prefs file will be generated with the default values.

If that doesn't seem to fix the problem, there must being something in the image header that is causing a problem. Are the image files small enough to email (even one at a time if needed)? If so, you can send them directly to me at karen dot collins at insightbb dot com. I will of course not share them and will destroy them as soon as we figure out what is wrong.

A couple of additional questions that might help give a clue before sending the images: what is the file format of the images you are opening? how large are the images? I understand you said there are 3 images in the stack.


Karen


On 7/23/2013 4:23 PM, chrisc [via AstroImageJ] wrote:
Hi - I did the update and checked About to make sure it was running 2.1.3. But no change in behavior, it still does not show any apertures. For what it is worth, there is a "draw all stored apertures in overlay" button in the image window. When I click on it  there is an error message "Error reading aperatures file".


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