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Messages - drmikevt

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Hello.  I want to transfer an image from one project to another and retain its full process history.  Is that possible?  If so, I don't know how and would appreciate some advice.


Gallery / M31 HaLRGB
« on: 2019 February 17 19:44:10 »
Data was gathered in 2017 but just reprocessed with the continuum map method of adding Ha.  Suggestions for improvement welcome. 
18 hours total

Bug Reports / Re: Crashing since Mojave update
« on: 2019 February 16 14:13:23 »

Thanks.  I DO think that the crash occurred while the HT tool was interacting with a real time preview, most likely using the black point slider, which I've been doing a lot of lately as I experiment with Arcsinhstretch, so that was open as well (most likely).  Going forward, if it happens again, I will be sure to note the exact steps that lead to the crash.  At this point, I'd only be guessing.  Another point of note is the that I am currently working with a project that is about 80Gb so there may be memory handling issues at play (but I really have no idea).

Hopefully, I won't be in touch!


Bug Reports / Re: Crashing since Mojave update
« on: 2019 February 16 07:51:36 »
Another crash report.

 Juan, should I continue to post these?  Is this a known issue?


Is it considered best practice to carefully set the  reference image before running image integration?  This is a topic that does not get discussed much. 

Is it the case that the median of the stacked image will depend on the reference image?  I would think that other parameters like FWHM and ECC are a little more absolute based on the data. 

If you do choose the reference image manually, what do you think makes the best reference?

Thanks for any guidance

Bug Reports / Re: Crashing since Mojave update
« on: 2019 February 13 20:16:22 »
Yes, it was fine under high Sierra for a long time.  Then, out of the blue, it crashed twice in a short period of time.  I posted about it below and Juan said that updating to Mojave would fix the issue  (whatever it is/was).  I don't know if the latest crash is the same problem or not. 

2017 MBP 2.8Ghz i7, Radeon Pro 555/Intel HD Graphics  630

I don't know if this could be an issue, but I noticed that after updating, the 'auto graphics switching' option was turned back on.  I just turned it off.  I know that option can be an issue with TSX, so maybe it makes a difference here....


Bug Reports / Crashing since Mojave update
« on: 2019 February 13 12:21:50 »
I updated the computer to the latest version of Mojave, as recommended.  Unfortunately, I'm still having random crashes.  It does not seem tied to a particular process.  Report is attached.

Is this also a known issue?


Bug Reports / Re: Crash Report
« on: 2019 February 10 14:25:00 »
Thank you for the advice.   

It used to be that updating the Mac OS was automatic - newer was ALWAYS better.  But, more recently things are not as straightforward.  Hopefully, Mojave is a winner.  Fingers crossed.


Bug Reports / Crash Report
« on: 2019 February 09 16:00:07 »
Here is a crash report.  PI simply hard crashed.  First time this has happened in years.
Mac 10.13.6

Could it be that the variations that he is reporting are due to differences in the weighting in reference to the reference image?  I think that maybe the weightings are in reference to the first image, or reference image, of the stack.  If the first image in the list we different for the 2 runs, then it is like comparing apples to oranges. 

Can someone please let me/us know if that is correct - that the weightings are dependent on the first image in the list of Image Integration?


There is no best method.  Most people will do the majority of the noise reduction in linear mode, before Histogram Transformation.  This way you don't have to stretch the noise (or at least most of it).  Regardless, a popular strategy is to use TVGDN followed by ACDNR with a Lum mask protecting the highlights.  Try those tools and see how you do.


General / Re: Unable to save project
« on: 2019 February 05 08:50:47 »

I've run into this before, and I'm pretty sure what it means is that PI can no longer find a certain swap file  that is needed in order to create the project correctly.  If PI runs out of swap space, it starts to throw out the older files to create space for new ones (more or less).  If you go too long without saving, you run the chance of the program throwing out something you need, as you experienced. The only way forward, I think, is to delete the file that is associated with the swap.  Then, you can save the project minus that one file.  Once you get burned by this issues once or twice, you will learn to save your project at the end of every processing session.  Since it now only updates changed files, it only take a minute to run, usually. 


If the above info is wrong, someone please correct me.

General / Re: Output Subframes with new Subframe Selector Process
« on: 2019 January 08 05:50:21 »
This thread is really interesting  (in terms of new/expanding astro functionality on the Mac side).  I looked at the Astropy  package.  Just curious - what do/would you use it for?


General / Re: ImageSolver not working...?
« on: 2018 June 25 12:49:21 »
I solved the issue by re-installing PI.  Its weird - my GAME script also disappeared, but just that script.  Everything seems back to normal now... 

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