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GraXpert, a new, free, and open source tool for gradient removal in deep sky photos

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#76 Steffenhir

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Posted 01 October 2023 - 01:59 PM

@rayman54 Unfortunately, there are some issues with macOS Sonoma and the framework we are using to make the user interface. We can only wait and see if either a new macOS or Tkinter version solves the problem.

 

@chuck666 This error comes up, when a file named saved_model.pb or saved_model.pbtxt can not be found. The file saved_model.pb should be in the bg_model folder when you have downloaded and unzipped it. On Windows, you have to put the bg_model folder in the same directory as your graxpert.exe, or with GraXpert version v1.0.6cAI you can manually select the bg_model folder directory in the advanced menu on the right.



#77 chuck666

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Posted 01 October 2023 - 04:00 PM

@rayman54 Unfortunately, there are some issues with macOS Sonoma and the framework we are using to make the user interface. We can only wait and see if either a new macOS or Tkinter version solves the problem.

 

@chuck666 This error comes up, when a file named saved_model.pb or saved_model.pbtxt can not be found. The file saved_model.pb should be in the bg_model folder when you have downloaded and unzipped it. On Windows, you have to put the bg_model folder in the same directory as your graxpert.exe, or with GraXpert version v1.0.6cAI you can manually select the bg_model folder directory in the advanced menu on the right.

Know that, did that? The file is in the folder. I see it. What's the default location? Something's amiss with the linkage of the folder? Let me see for the 4 time.

Chuck

 

Edit: Apparently, I can't read until I do it 4 times.  I had the wrong folder chosen. I had picked the master folder that bg_model was in; and should have picked "pg_model" folder that had the files in. English can be a hard language grammar, wise.

Thanks for the help. Working now.

Chuck


Edited by chuck666, 01 October 2023 - 04:16 PM.


#78 chuck666

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Posted 01 October 2023 - 04:48 PM

Hi Chuck, what software did you use to stack your image and did you save the stack as 16 bit or 32 bit? Such artifacts can occur with 16 bit images due to the lower bit depth and are already there before background removal. The background removal only makes them visible.

 

We have released a new version of GraXpert v1.0.6cAI https://github.com/S...s/tag/v1.0.6cAI which addresses the most common problems with the previous Beta version. In the new version, the directory of the 'bg_model' folder can be set manually in the advanced menu on the right. The default directory remains the same. Also, the starting message now takes into account Beta versions and when newer official releases are available, and we added more error messages for errors during calculation.

 

Also, we have released a new version of the AI https://drive.google...bpy?usp=sharing which was trained with all new images sent to us by the community.

Frank, the lastest ver 6cAI still shows the rings when I do an autostretch as it did before using Siril 1.2.0. 16 or 32 bit has no effect. I use ASI Studio as my "fits" viewer and they are there also. I can rid the images of the rings if I do a "1" sample point in BE using Siril and "dither" option. 

 

What fits viewer do you use?

It's not a huge thing, just confusing to me. I think your AI version is certainly easier and maybe slightly better than Sirils!

Just trying to help. No one else is reporting this?

Chuck



#79 vvferi

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Posted 11 October 2023 - 03:56 PM

I just downloaded, and tried this software, and happy with the result. The only thing I can not understand, that  - when downloaded from site https://www.graxpert.com/ - why I got a virus alert from Microsoft Defender ?


Edited by vvferi, 11 October 2023 - 03:57 PM.


#80 Lead_Weight

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Posted 11 October 2023 - 04:31 PM

I just downloaded, and tried this software, and happy with the result. The only thing I can not understand, that  - when downloaded from site https://www.graxpert.com/ - why I got a virus alert from Microsoft Defender ?

Microsoft always alerts a file might be unsafe if it's not a file that lots of people download regularly. 



#81 arbit

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Posted 11 October 2023 - 07:51 PM

Defender will warn if the file is not downloaded a lot.

You can always check the file at virustotal, which runs it through 60+ anti malware programs. Even there, one of the lesser known apps may throw up a red flag. But as long as the big ones (Bitdefender, Eset, Kaspersky, Norton, Mcafee, Defender) give it an okay I take it as a pass.

Sent from my SM-S908E using Tapatalk

#82 schmelly

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Posted 13 October 2023 - 02:02 AM

I just downloaded, and tried this software, and happy with the result. The only thing I can not understand, that  - when downloaded from site https://www.graxpert.com/ - why I got a virus alert from Microsoft Defender ?

Please also see my older post here: https://www.cloudyni...tos/?p=11862178

As soon as the AI-version is out of Beta we will submit the release builds for scanning to Microsoft.

 

Best regards

David



#83 roelb

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Posted 16 October 2023 - 05:07 PM

I'm using the 1.0.6cAI version and have regularly the following error message:

<Floating point nan values are not allowed in FITS headers>



#84 schmelly

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Posted 18 October 2023 - 06:41 AM

I'm using the 1.0.6cAI version and have regularly the following error message:

<Floating point nan values are not allowed in FITS headers>

 

Dear Roel,

can you please describe your stacking process (type of lights, software used) and ideally share one the affected .fits images or fits headers with us? Otherwise it's a bit difficult to look for potential bugs.


Best regards

David



#85 dac4215

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Posted 18 October 2023 - 02:49 PM

I have tried to find an answer for my problem, but I have had no luck. I am trying to run Graxpert on a Win11 machine. It installs and runs ok, but the buttons and fonts are so small that I cannot read them to use the program. If anyone has a solution, I would appreciate it. Thanks



#86 roelb

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Posted 18 October 2023 - 06:22 PM

I have tried to find an answer for my problem, but I have had no luck. I am trying to run Graxpert on a Win11 machine. It installs and runs ok, but the buttons and fonts are so small that I cannot read them to use the program. If anyone has a solution, I would appreciate it. Thanks

I had also some programs (mostly older ones) with very small displays.

 

I did the following:

right click on the program shortcut

choose Properties

select: Compatibility

select: Change high DPI settings

select: Ignore high dpi scaling.

choose: Ignore high dpi scalability behavior. Scaling performed by:

now you have 3 options to select: 

Application

System

System (Expanded)

Now you have to experiment to see what the result is.

 

Hope that gives a solution.



#87 dac4215

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Posted 18 October 2023 - 08:33 PM

I had also some programs (mostly older ones) with very small displays.

 

I did the following:

right click on the program shortcut

choose Properties

select: Compatibility

select: Change high DPI settings

select: Ignore high dpi scaling.

choose: Ignore high dpi scalability behavior. Scaling performed by:

now you have 3 options to select: 

Application

System

System (Expanded)

Now you have to experiment to see what the result is.

 

Hope that gives a solution.

I have tried all the settings, changed windows settings and nothing seem to help. Thanks for your suggestions.


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#88 schmelly

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Posted 19 October 2023 - 11:05 AM

I have tried to find an answer for my problem, but I have had no luck. I am trying to run Graxpert on a Win11 machine. It installs and runs ok, but the buttons and fonts are so small that I cannot read them to use the program. If anyone has a solution, I would appreciate it. Thanks

Hi,

 

in recent versions of GraXpert we have added an option to change the user interface scaling. You can find that in GraXpert's advanced tab. Increasing the scaling option will enlarge GraXpert's UI elements, please see the attached screenshot.

 

If that does not work for you, you can try to change the scaling option in GraXpert's settings file 'preferences.json' manually which is located here (i.e., by means of a text editor):

%localappdata%\GraXpert\GraXpert\

You can navigate to that folder by copy&pasting the string into the Windows Explorer address bar.
 

 

CS

David

 

Latest stable release of GraXpert: https://github.com/S...releases/latest

 

graxpert_scaling.jpg


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#89 midnightlightning

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Posted 20 October 2023 - 02:46 AM

@schmelly 

 

Just downloaded and am experimenting on my LDN1235 image. Initial thoughts, results are very similar to DBE. I can get slightly better results with DBE but with a lot more effort.

 

Question. I have run the same RGB image through GraXpert both with, and without, stars and the results are quite different. I'm struggling to work out which is best, not sure whether the starless one is taking out too much. 

 

Should Graxpert be used on images with or without stars?

 

For mono images do you advise using on individual channels or on the combined RGB? 


Edited by midnightlightning, 20 October 2023 - 08:27 AM.


#90 schmelly

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Posted 20 October 2023 - 10:40 AM

@schmelly 

 

Just downloaded and am experimenting on my LDN1235 image. Initial thoughts, results are very similar to DBE. I can get slightly better results with DBE but with a lot more effort.

 

Question. I have run the same RGB image through GraXpert both with, and without, stars and the results are quite different. I'm struggling to work out which is best, not sure whether the starless one is taking out too much. 

 

Should Graxpert be used on images with or without stars?

 

For mono images do you advise using on individual channels or on the combined RGB? 

Hi,

 

we assume gradient removal will be the second image processing step right after cropping. Hence, Steffen has trained the model on images having stars and I suggest to use the AI-based algorithm on images with stars. However, you can always check for too much removed signal in GraXpert's "Background" mode (dropdown menu in the top of the screen). Typically, you want to start with a smoothing factor of 0 and increase from there. If the result is not promising I suggest to stick to the "classic" algorithms like RBF (GraXpert) or DBE (PixInsight).

 

Regarding mono images: so far, Steffen has trained the model exclusively on colored images. For mono, we internally convert to a colored image at the moment - this will change at some point. Hence, it should work sufficient on both mono and rgb images - resulting quality might be a bit better on rgb images.

 

CS

David


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#91 dac4215

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Posted 20 October 2023 - 09:05 PM

Hi,

 

in recent versions of GraXpert we have added an option to change the user interface scaling. You can find that in GraXpert's advanced tab. Increasing the scaling option will enlarge GraXpert's UI elements, please see the attached screenshot.

 

If that does not work for you, you can try to change the scaling option in GraXpert's settings file 'preferences.json' manually which is located here (i.e., by means of a text editor):

%localappdata%\GraXpert\GraXpert\

You can navigate to that folder by copy&pasting the string into the Windows Explorer address bar.
 

 

CS

David

 

Latest stable release of GraXpert: https://github.com/S...releases/latest

 

attachicon.gif graxpert_scaling.jpg

Thanks. That did it.



#92 bilgebay

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Posted 22 October 2023 - 09:12 AM

Hi,

 

Graxpert is quitting right at the start on MacBook Pro M2 computer. Is anyone having the same problem ? When installing, MacOS warned me that Graxpert needed upgrading by the developers but I disregarded that warning.



#93 bilgebay

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Posted 22 October 2023 - 10:09 AM

Installed Windows version on the same computer (Parallels VM on MacBook Pro) and it runs without any problems.



#94 roelb

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Posted 22 October 2023 - 07:07 PM

Dear Roel,

can you please describe your stacking process (type of lights, software used) and ideally share one the affected .fits images or fits headers with us? Otherwise it's a bit difficult to look for potential bugs.


Best regards

David

Please find the images in my Gallery:

 

NGC 2336 ZWO ASI290MM(53045621) 80 X 10,0s = 800s 4 02 2022 23 46 03
Album: GraXpert
4 images
0 comments

 

It seems that the problem is specifically with images with: 968 x 548 pix 8 bit mono.

But not always.



#95 schmelly

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Posted 23 October 2023 - 02:58 AM

Hi,

 

Graxpert is quitting right at the start on MacBook Pro M2 computer. Is anyone having the same problem ? When installing, MacOS warned me that Graxpert needed upgrading by the developers but I disregarded that warning.

Hi,

 

in short, the steps to install GraXpert on Mac are as follows:

  • uninstall any previous version
  • double click the .dmg
  • copy the application in the .dmg to your applications folder
  • start GraXpert and configure your OS security settings to trust the execution

did you follow these steps? More detailed descriptions of the installation procedure are documented here:

Our users reported the following release can be started on both Intel- and ARM-based Macs: https://github.com/S...ases/tag/v2.0.0

You might want to try that out. Please note that you do not have to manually setup the 'bg_model' folder for the AI version.

 

CS

David


Edited by schmelly, 23 October 2023 - 02:58 AM.

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#96 schmelly

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Posted 23 October 2023 - 03:00 AM

Please find the images in my Gallery:

 

 

 

It seems that the problem is specifically with images with: 968 x 548 pix 8 bit mono.

But not always.

Hi,

 

thanks a lot, I can reproduce an issue with the first .png file you provided (did not try the other ones yet).

 

However: you mentioned issues with .fits headers. Can you provide an image in .fits format as well to make sure we are not facing two different issues?

 

Many thanks and CS

David



#97 bilgebay

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Posted 23 October 2023 - 05:34 AM

 

 

Our users reported the following release can be started on both Intel- and ARM-based Macs: https://github.com/S...ases/tag/v2.0.0

You might want to try that out. Please note that you do not have to manually setup the 'bg_model' folder for the AI version.

 

CS

David

Hello David,

 

Version 2.0.0 works like a charm. Thanks for your kind assistance.

 

Clear skies..

 

Sedat



#98 rayman54

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Posted 23 October 2023 - 06:19 AM

Thank you!  It's now working perfectly on my M<1 MacBook Pro.

Hi,

 

in short, the steps to install GraXpert on Mac are as follows:

  • uninstall any previous version
  • double click the .dmg
  • copy the application in the .dmg to your applications folder
  • start GraXpert and configure your OS security settings to trust the execution

did you follow these steps? More detailed descriptions of the installation procedure are documented here:

Our users reported the following release can be started on both Intel- and ARM-based Macs: https://github.com/S...ases/tag/v2.0.0

You might want to try that out. Please note that you do not have to manually setup the 'bg_model' folder for the AI version.

 

CS

David

 



#99 roelb

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Posted 23 October 2023 - 09:55 AM

Hi,

 

thanks a lot, I can reproduce an issue with the first .png file you provided (did not try the other ones yet).

 

However: you mentioned issues with .fits headers. Can you provide an image in .fits format as well to make sure we are not facing two different issues?

 

Many thanks and CS

David

NO, the images are loaded as .png (no .fits).

But the error message is: <Floating point nan values are not allowed in FITS headers> but the image is a .png.



#100 jginnow

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Posted 23 October 2023 - 12:58 PM

I tried updating to AI version today using Cuiv's video link. Upon opening Graxpert told me there was a later version. Sure enough Github lead me to Graxpert 2.0.  Downloaded that and my security software tells me it contains "Win64:Malware-gen" and won't let me open it.

 

Anyone else?




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