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Messages - GordonH

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Bug Reports / Re: PI Will Not Open (No Access Violation or Dell)
« on: 2017 August 31 21:15:11 »
I'm having a similar issue. Sometimes when I exit out of PI (using the "X") and then try to restart it later all I get is the spinning circle. I started monitoring my Windows 10 system using the Resource Monitor - Memory tab and the Task Manager. When exiting PI the PixInsight.exe process in the Resource Monitor will change from normal print to grayed out and ultimately disappear. It also disappears immediately from the Task Manager.
Sometimes the PixInsight.exe process disappears from the Task Manager but stays in normal print in the Resource Monitor and doesn't disappear with time. That's when PI will not restart. If I re-boot the computer PI will restart.

Today I did some searching on the web for processes that don't terminate properly. What I discovered is if I open an Admin level command prompt window you can type Tasklist and you will get a list of running processes similar to the Resource Monitor. I did that when PI would not restart. The PixInsight process was not listed. However, I entered:

Taskkill /PID xxxx /F        (where xxxx was the PID number listed next to the process on the Process Monitor)
The process reported success, the PixInsight.exe disappeared from the Resource Monitor, and then I could restart PI.

I'm over my head here. I don't know if this is a Windows bug or a PI issue.


New version out today put it back.



Thanks, I should have payed more attention.

That did the trick.


I tried the new LocalNormalization with the Output Files stored in the same directory as the previously registered images.  The process runs to conclusion with a ".xnml" file for each of the image files.
In ImageIntegration I set Normalization to Local normalization but get:

"Warning: Local normalization data not available - No normalization will be applied!

Note: The image files are RGB

What am I missing?

My screen resolution is 1920 pixels wide and the button is missing.


Release Information / Extract Luminance
« on: 2017 August 06 19:46:50 »
The Extract Lightness icon disappeared from the Image Toolbar in the latest release. Can that be restored?


New Scripts and Modules / Re: Annotation script
« on: 2017 July 03 19:01:49 »
Changing the FITS to "bottom-up" solved the problem. I had to go back to my original "RAW" images to make it work. It also fixed the plate solve. Interestingly, re-orienting the XISF files to match that of the bottom-up FITS still will not solve.

Thanks for your help.

New Scripts and Modules / Re: Annotation script
« on: 2017 July 01 18:01:26 »
I've used the script in the past with no problems, but, now I have an issue. When I run the script the annotated image is produced, but, all the text is mirrored around the horizontal axis. Some processing details: I attempted to plate solve with ImageSolver, but, it fails. I took the same image and plate solved with TheSkyX with no issue. I then re-opened in PixInsight. I've atgtached a jpeg of the annotated image and a screen shot shot showing the FITS header.

Registration was done after debater. The initial processing was done with the BatchPreprocessing. Additional integration attempts were done with the debayered-aligned images. (For clarification, the attached image was the extracted luminance channel.)


I imaged NC925 and while processing I noticed a "checker board pattern" in the background and persists into the higher signal area of the galaxy itself. The pattern runs at an angle to the row/columns of the sensor pixels. I've attached a grossly overstretched image to illustrate the conditions.

The images were taken with a Canon 6D DSLR using an AstroTech AT10RC scope. Acquisition software is TheSkyX Camera Add-in.  I've been using this combo for about the last 9 months and have not seen the pattern previously. I did go back and check some previous images.

I initially used 38 - 8 minute subs (I image from pretty badly light polluted skies and needs lots of subs!) I dithered these subs with an off-set of 10 pixels on the guide camera (translates to about 26 pixels on the image.) After seeing the pattern I inspected the individual subs, the master bias, dark, and flat and could not discern the pattern. I then stacked groups of 10 subs from the beginning and end of the run. The pattern appeared. I initially stacked using LinearFit, but, also tried WinsorizedSigma.

My next thought was some kind of relationship to the dithering pattern (TheSkyX seems to move the same number of pixels between each sub??) I re-imaged the target about 3 weeks later (I live in Michigan - you don't get many clear nights!) this time with the dither set to 5 pixels. Same result. I then stacked all the images together, tried the different rejection techniques and then started over with all the frames and used the Bayer drizzle routine in BatchPreprocessing. That's what was used for the attached image.

I also separated and inspected  the R - G - B channels from the integrated image. The pattern appear in all three channels, but, more noticeable in the red.

If the pattern were aligned with the sensor I would blame the camera. The fact that its on an angle leaves me puzzled.

Any ideas / help will be appreciated.


Bug Reports / Re: Images Saved with STF are Permanently Altered
« on: 2016 February 13 02:15:04 »
Thanks all for the responses. Another lesson learned!

I did do some more "experimenting." If I reopen a file saved with an STF stretch after restarting PixInsight, it will not re-set by clicking the reset button. You must first click on the AutoStretch button. then the Reset works.

Once again thanks for the help.


Bug Reports / Images Saved with STF are Permanently Altered
« on: 2016 February 11 20:45:07 »
My normal routine is to use STF to examine an image right after ImageIntegration and then save this image. In the past these images would reopen without any stretching. That no longer appears to be true.

If I save the image, close it down, and then reopen, it immediately appears stretched. Resetting in the STF will return it to its unstretched state. However, if I shut PixInsight down and then restart and open the image, it again appears stretched, but, that stretch is now permanent.

Not sure when this started. I recently upgraded to Windows 10 and the the same behavior occurs on both my desktop and laptop computers.

Gordon Hansen

General / Re: Comet Alignment Problem
« on: 2013 November 13 21:25:30 »
I had the same issue with version 1.8. I capture images using CCDSoft and it writes the DATE-OBS entry with decimal seconds (nnn.ddd) I manually edited the entries leaving only whole seconds. That corrected the problem. Now to figure out how to make CCDSoft leave of the decimals in the first place!


Bug Reports / Re: Corrupted shared image structure errors
« on: 2013 February 11 21:35:27 »
I get the error every time I close an image that's been operated on. I've reopened them and there doesn't seem to be any issues.

Gordon Hansen

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