Recent Posts

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1
General / PixInsight New Version Problem
« Last post by ajbarr on Today at 18:40 »
Several weeks ago I posted that the new version of PI would not run on my older iMac. I decided to bite the bullet and buy a brand new one with a 2 TB SSD drive and 16 megs of memory. The upgrade runs fine on the new computer however I ran into a problem today when processing some data. After calibration and registration I ran Image Integration and the results were terrible. The first thing I noticed was the pixel rejection screen was inverted, white background and black nebula. I have never seen that happen before. Needless to say, the stack image was horrific. After looking at all the subs several times and changing some settings, I still got the same results.

Then I renamed the new app file and loaded the older version. I processed all the data again and there was no problem. My only assumption is there may be some kind of bug in the new software that still makes it incompatible with Apple.

Does anyone know anything about this yet?

Thanks

Albert
2
I cannot find anymore HARVB script after a couple of years from the last time I used Pixinsight.
Is possible still to download it?
Otherwise which script is used now to blend SHO with different weights because I have usually to H signal respect O e overall S using SHO=RGB?   
3
Announcements / Re: PixInsight 1.8.7 Released
« Last post by Brad on Today at 13:00 »
Hi Brad,

Thank you so much. Yes, the .xosm file and the associated .data folder, preferably compressed as a zip file to prevent corruption. Or, if the project is bundled, the .pxiproject bundle, also compressed for the same reason.


Hi Juan,

DropBox

Same link, two new entries. 1) Compressed project data 2) another video showing another behavior. When I was testing and I clicked the real time preview I went to do some other things on the Mac. When I clicked on another app, taking focus away from PI, the real time preview instantly displayed. The video shows this as an example.

Let me know if you have any issues with the data - it's quite large.

Hi Brad,

Thank you for uploading this project. It has helped me to reproduce and understand the problem. This is a complex bug reproducible on all platforms. I am working on it right now, so it will be fixed in the next update. Thank you for your patience and sorry for the trouble.

Thanks, Juan! Glad you were able to locate it and good luck and look forward to the fix!!!!
4
Announcements / Re: PixInsight 1.8.7 Released
« Last post by Juan Conejero on Today at 12:51 »
Hi Brad,

Thank you so much. Yes, the .xosm file and the associated .data folder, preferably compressed as a zip file to prevent corruption. Or, if the project is bundled, the .pxiproject bundle, also compressed for the same reason.


Hi Juan,

DropBox

Same link, two new entries. 1) Compressed project data 2) another video showing another behavior. When I was testing and I clicked the real time preview I went to do some other things on the Mac. When I clicked on another app, taking focus away from PI, the real time preview instantly displayed. The video shows this as an example.

Let me know if you have any issues with the data - it's quite large.

Hi Brad,

Thank you for uploading this project. It has helped me to reproduce and understand the problem. This is a complex bug reproducible on all platforms. I am working on it right now, so it will be fixed in the next update. Thank you for your patience and sorry for the trouble.
5
Bug Reports / Re: Eccentricity = 0 in Subframe Selector
« Last post by smccully on Today at 12:15 »
Quote
It’s not only eccentricity that is a problem.  An FWHM less than one arc second is not believable unless you are imaging somewhere in the high Andes.

I have just measured the two frames linked above with SubframeSelector, and the FWHM values reported are 3.3 and 3.6 arc seconds, respectively for the 25_c and the 29_c frames. I have used a frame scale value of 0.4"/px and a circular Gaussian PSF, just as shown on the screenshot. These FWHM values are quite correct IMO.

It is true that eccentricities are being reported as zero for both frames; I'll investigate this later. As for FWHM, something looks wrong with the measurements being shown here. Can you please upload this entire set of M33 frames?

https://www.dropbox.com/sh/n6rp6090dq7k67k/AAADSR7IZI0fkdAth-ASM9aea?dl=0
6
General / Swap performance dramatically less?
« Last post by joelshort on Today at 11:55 »
About two years ago I built a desktop PC for PI processing (Ryzen 5-1600 overclocked to 3850mhz, 32GB DDR4-2133 overclocked to 2800mhz, 1TB SSD). 

When I set up the computer I also used Imdisk to create a 15GB Ramdisk on the memory module.  Then I performed PI Benchmarks to set up the number of swap directories and I clearly remember that swap performance being around 20,000.

However recently I did another benchmark and for some reason the swap performance is only around 4000 and 800mb/s transfer rate.  I can't figure out what would have changed.  I have recreated the Ramdisk and as far as I can tell everything is set up properly, just as it always has.

What prompted this is that I got a new laptop, installed PI on it and setup an 8GB Ramdisk, and ran a benchmark.  The Swap performance was 15,000 and a much higher transfer rate than the desktop.  In every spec the desktop should perform better. 

Any idea what could have caused this change?
7
General / PI crashes - new user
« Last post by dablig on Today at 09:32 »
Hi All,
I am a new user of PI, and although I have started to do some nice work with it, it crashes on a regular basis :
- any process where I tick evaluate noise or generate drizzle data
- image calibration
- image integration or star alignment
- local normalization
to name a few.
the computer will run for hours and then crash.
I am running on Windows 10, Intel i7-8750 with 8Gb RAM - I have tried with the default set up and also by creating swapfiles on the SSD drive and one swapfile on the Hard drive.
would someone be able to give me any help ? would you need more details ?
many thanks !
8
Bug Reports / Re: Eccentricity = 0 in Subframe Selector
« Last post by dkuchta5 on Today at 06:47 »
>> I dont know, this was working. No idea what if anything really changed when it stopped
>> working. But it hasn't worked since, even after reinstallation for latest version.

My experience exactly.  Installing the latest version did not change the behavior.
-Dan
9
Hi Joe,

Thanks for the report. We cannot reproduce this problem, and nothing similar has been reported so far for versions 1.8.6 and 1.8.7. Is this a repeatable issue for you?

The segmentation violation occurs in the InitializePixInsightModule routine, which is part of the module installation process in the PixInsight core application. Are you using a nonstandard or third-party module?
10
Bug Reports / Re: Eccentricity = 0 in Subframe Selector
« Last post by Juan Conejero on Today at 06:20 »
Quote
It’s not only eccentricity that is a problem.  An FWHM less than one arc second is not believable unless you are imaging somewhere in the high Andes.

I have just measured the two frames linked above with SubframeSelector, and the FWHM values reported are 3.3 and 3.6 arc seconds, respectively for the 25_c and the 29_c frames. I have used a frame scale value of 0.4"/px and a circular Gaussian PSF, just as shown on the screenshot. These FWHM values are quite correct IMO.

It is true that eccentricities are being reported as zero for both frames; I'll investigate this later. As for FWHM, something looks wrong with the measurements being shown here. Can you please upload this entire set of M33 frames?
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