35 replies to this topic

[smiller]

 

When I post an updated version, I'll post the link here.

 

Now, just to note again, this document is just about stacking.  

That's what I'm mainly concerned with at the moment.

 

I'm pretty happy with my post processing, but with my Dobsonian I capture very short exposures and have typically 1000-3000 subs to stack and SIRIL is very fast.  So right now I'm still in the process of evaluating the speed vs quality vs "working disk space" requirements of APP, SIRIL and PI to see if APP and PI have any significant advantages over SIRIL in stack quality that warrants their much longer stacking times and higher resource requirements (higher if I use SIRIL's .FITS compression).

 

So far I haven't spotted any significant advantages for APP and PI over SIRIL 1.2beta other than one thing:  APP's multi band-blending mode does wonders on a rotating field (i.e. field rotation over an imaging session) especially if the consistency of the background gradients are especially important, such as for large dim nebula.   That is one area APP can't be beat, by SIRIL and not even by PI.

 

Cheers,

 

Steven

[EPinNC]

That's what I'm mainly concerned with at the moment.

 

I'm pretty happy with my post processing, but with my Dobsonian I capture very short exposures and have typically 1000-3000 subs to stack and SIRIL is very fast.  So right now I'm still in the process of evaluating the speed vs quality vs "working disk space" requirements of APP, SIRIL and PI to see if APP and PI have any significant advantages over SIRIL in stack quality that warrants their much longer stacking times and higher resource requirements (higher if I use SIRIL's .FITS compression).

 

So far I haven't spotted any significant advantages for APP and PI over SIRIL 1.2beta other than one thing:  APP's multi band-blending mode does wonders on a rotating field (i.e. field rotation over an imaging session) especially if the consistency of the background gradients are especially important, such as for large dim nebula.   That is one area APP can't be beat, by SIRIL and not even by PI.

 

Cheers,

 

Steven

Indeed, your needs are a bit more specialized than mine (and perhaps those of many others).  I'm just using an unmodified DSLR in a basic way, trying to get images that I'm reasonably happy with.  Loading up a few hundred .NEF files is about as demanding as I get.

 

I have heard that Siril does seem to work faster than some other packages, at least in some ways.  Siril is the only package I've used, so I myself can make no statements regarding that.

 

Bear in mind that my document is aimed at simply helping people become familiar with the graphical interface, people who have relied on the included OSC_Preprocessing script alone.  As such my instructions actually just mimic what the script does.  The idea is just to become familiar with the interface, so that one can understand things more and do something different if desired.  Writing custom scripts is beyond what I have done so far.

 

Sometimes I've seen people make suggestions about setting a specific option or doing things in a different order.  But folks who are just relying on the script won't immediately know how they can do such a thing.  Knowing your way around the graphical interface opens new possibilities.

 

Thanks again for taking a look!

[dx_ron]

Yes, I think that could guide someone through it! The only nit-pick is that I don't think you can changer Home directory by starting with the Open button. At least it doesn't seem to work that way for me. I click the Home button directly.

[EPinNC]

Yes, I think that could guide someone through it! The only nit-pick is that I don't think you can changer Home directory by starting with the Open button. At least it doesn't seem to work that way for me. I click the Home button directly.

Your nit-pick is correct.  That was one of my signature Brain Fumbles.

Edited by EPinNC, 03 June 2023 - 12:21 PM.

[Oort Cloud]

Yes, I think that could guide someone through it! The only nit-pick is that I don't think you can changer Home directory by starting with the Open button. At least it doesn't seem to work that way for me. I click the Home button directly.

The open button does not change the home directory - however - associating a file type (like fits) with Siril, and then opening a file of that type in Siril by double clicking the file, will change the home dir to the dir the file was located in.

Edited by Oort Cloud, 05 June 2023 - 08:08 AM.

[EPinNC]

The open button does not change the home directory - however - associating a file type (like fits) with Siril, and then opening a file of that type in Siril by double clicking the file, will change the home dir to the dir the file was located in.

Yes, I fixed that.  It was a "brain bug".  I'm also working on adding dx_ron's method of stacking multiple sessions.  I've tried it, it works well, and it seems more efficient than my method.  I'll post the link to the updated version soon!

 

Thanks for taking a look!

[EPinNC]

Regarding symbolic links on Windows...

 

This also requires you to enable developer options in windows. Since I dump the working folder after every project, I just let is use the extra disk space; always an option if you aren't short on capacity.

Can you point me to a good reference about how to enable these developer options?  I'm trying to add a note about that in my description of dx_ron's method of multi-night stacking.

 

Thank you!
 

[Oort Cloud]

Regarding symbolic links on Windows...

Can you point me to a good reference about how to enable these developer options? I'm trying to add a note about that in my description of dx_ron's method of multi-night stacking.

Thank you!

The only place I've ever seen it was in the documentation on www.siril.org (the old docs, pre-beta)

[EPinNC]

The only place I've ever seen it was in the documentation on www.siril.org (the old docs, pre-beta)

I think I found a couple of things:

 

https://blogs.window...nks-windows-10/

 

https://learn.micros...for-development

 

Seem like reasonable references?  (As you can guess, I don't have Windows.)

[Oort Cloud]

I think I found a couple of things:

https://blogs.window...nks-windows-10/

https://learn.micros...for-development

Seem like reasonable references? (As you can guess, I don't have Windows.)

I'd use this one, because it's not only the actual instructions for enabling, but also lists the reasons why this shouldn't be done on computers that are meant for normal use.

https://learn.micros...for-development

[EPinNC]

Version 1.2.0 of my description here:

 

https://drive.google...?usp=drive_link

 

Please refer to the "README" file for the link to the most current version.

 

The main update is the addition of dx_ron's method of stacking multiple sets of lights, such as from different nights.  I call it the "in-place" method, as you don't have to move things around.  Thank you, dx_ron!

 

And many thanks to everyone who helped improve this document!  See the Acknowledgements section at the end.

 

If you spot any errors, or if something seems unclear, please let me know either in this thread or in a direct message if you prefer.