Mind blown today - there was one simple thing that you showed in this video that totally upgrades my processing. Can’t believe I didn’t see it before 😮 thanks for the help!
Wonderful tutorial. Thanks to you, I was able to greatly improve my picture of the lion nebula to show the beautiful blue from my dual band filter. Thank you for the great tutorial and the new techniques you taught me.
Cuiv this is fantastic! Rainy days here in Chicago so I'm going to give this workflow a shot. Thank you for showing all the steps; I'm going to follow along!
Great video again Cuiv! - lots of great points and tips! - appreciated seeing the considered use of Topaz too, it's such an incredible tool to have Clear skies!
@@CuivTheLazyGeek Hey! My pleasure Cuiv! - It always amazes me to be honest, I have to pinch myself! - everyone has been so kind and welcoming right from the start :-) Clear skies!
Encore une EXCELLENTE vidéo !!! Merci à toi. J'ai investi dans un filtre L Extrême grâce à ta vidéo sur les filtres et en appliquant ta méthode de traitement c'est impressionnant au résultat malgré mon ciel en Bortle 7 à 8. J'ai découvert ta chaîne en cherchant des renseignements sur les caméras pour le CP (j'ai d'ailleurs acheté une ASI533 après avoir visionné ta vidéo) et depuis je ne fais que des progrès dont une bonne partie grâce à tes conseils. Encore merci et bonjour de France !!!
In this processing of the blue work flow I’m impressed. Being sorta retired I can spend hours and hours in pixinsight. I’ve watched all the osc color sho videos for pixinsight and Astro pixel processor. I believe I have found the one , like the one video with practice I can master it. I use the L extreme filter . I have been thinking about the $2000 plus equipment set up for narrowband . I mean I just bought the Stellarvue avx 102t so why not. But then I told myself wait and see what processing advancements come up. You did it thank you. I might have to watch it 50 times but I’ll get it.
I love how you were talking to Pixinsight during the dynamic background extraction like it understood what you were saying hahaha. Whoever came up with this was idea for processing O data was brilliant. I am looking forward to trying it soon.
🤣 best thing I've heard in a while 'credit where credits due: I don't remember where it's due' 🤣 Really great tutorial. I'm struggling to find a combination I like for my new L-Extreme filter because of the heavy reds. This looks really nice thanks!!
Watched it again today after imaging the Soul Nebula this week. Ill definitely use your tips for post-processing and refer to your video in the description. Thank you for sharing your expertise.
@@KMuffel not that I know of. For me, the only really difference in my process is that I stack and calibrate in Astropixel Processor, so I separate my HA and Oiii in APP then do my channel combination and masking in Photoshop.
Wow - congratulations - excellent tutorial and extremely helpful. Great image. Thank you so much. I learnt a lot and am inspired to have another go at processing.
Thanks for this vid Cuiv. I’ve really struggled in the past to get anything other than red in my narrowband images. I’ll tuck this process away in my toolkit for future use.
Congratulations, I am following your tutorials with great interest and I am happy that I have learned a lot with you thank you for everything you do for us
Outstanding video. I had never seen the EZ process scripts so that was a big help. A lot of these tools I have used before but this workflow seems to have gone better than my usual! I still opted to process the HOO and a Lum separate to combine later. Mostly because even with 15 hours of O3 (NGC 7822) it was still pretty noisy.
Awesome thanks 🙏, so much better thanks the feathered selections I had used in the past!!! Thanks. I posted my results tonight on Instagram and tagged you
I saw, great result! You can also play around with histogram transformation (and convolution for blurring the mask) after extracting luminance instead of range selection to be subtler in the effects!
Top merci pour ce tuto ! J'ai justement eu du mal sur cette même cible début octobre que j'ai shootée avec le L-eXtreme. Pour ma part, toute la partie OIII ressort plutôt très pâle et claire. Du coup je vais essayer cette méthode mais à voir dans mon cas comme c'est fort clair si je parviendrai à y mettre de la couleur sans tricher avec un calque de bleu par-dessus. Et t'es bien relancé là, ça fait plaisir de revoir autant de vidéos ;-)
Cuiv...you and are working through all the same issues. I use mono so here's what I do. Process HOO, Process SHO, go into photoshop and blend the blue into the red with layers and a soft brush.
Thanks for that! Unfortunately I don't ever want to use Photoshop, I'm not a big fan of Adobe in general, and how crazy expensive their subscriptions are...
Great video. I do something similar with my images. It can be as easy as doing an unlinked stretch and then making a mask of the B/G channel and applying curves.
Your timing could not be better. I literally am doing a CFA drizzle integration from my first time out w/an L-eXtreme filter as I type this. 4 hours on Melotte 15. I'll let you know how it goes. :)
interesting technique. And will try something similar in the future as I'm working on an HOO project where I'm hoping to really get some blue's going. I don't have pixinsight, but I reckon I could do something similar with converting/using the Oiii as a mask for a colour balance/levels/hue adjustment layer in photoshop.
That’s yet another great video, Cuiv! Great to see how you bring those blue’s forward and nice how you used DBE to get rid of the introduced artifacts. Usually I do DBE at the beginning and never touch it again, but for these situations it can work very well. It’s of course a matter of taste, but as much as I try, I can never really appreciate the results of TopazDenoise. It tends to make the image a bit plasticky/artificial. Hope your scopes will be back in operation soon!
@@CuivTheLazyGeek I thought so, you seem to have a bit of a French Canadian accent (just like I do). Where's home for you? You would love the South of France, mountain tops accessible by car, clear skies
One note: When using ABE and DBE you should choose the correction algorithm based on what you are trying to correct. Sky gradients are an "additive" component to the image (since every pixel collects " N " photons from the nebula + " M " photons form light pollution), while vignetting is a "multiplicative" component (every pixel collects " N*L " photons, where N is the number of photons emitted by the nebula and L is a scaling factor telling us how much of those photons actually reach the sensor. In the middle of the image L is 1, at the corners it might be 0.7 due to vignetting "catching" 30% of the light incoming). You should use "subtraction" for sky gradients, and "division" for vignetting. I hope my comment makes sense 😅
Your comment absolutely makes sense! A long time ago I was doing this religiously (and yes I tried division when preparing the video) but for the life of me I've never see division doing better than subtraction... I know in theory it should for vignetting but...
A very handy technique Ann, the best, powerful and simple enough. Certainly I’m going to try it. Thanks for posting it, Cuiv. May I ask why do you reduce noise outside of Pixinsight? Regards, Alfredo
Question....do you try for the most pleasing colors/combination (artistic license)or try to stick more strictly to reality? if reality what is your guide?
When I do RGB/OSC shots, I stick to reality using Photometric Color Calibration. For narrowband you stick to reality, but not to what human eyes can detect. You map relevant physical bandpasses to different colors, and how you do that is completely up to you. Hubble nebulae pictures typically use that same technique. It is physically correct and appropriate, but since there is no RGB reference dictated by our eyes, there is a lot of freedom in processing.
Agree, with some reference like Osc. It can be at least with in some reasonable range of realistic representation. Albeit it might not be as sexy I prefer to try and stay within a certain range. Thank you, keep up the good work!
How wonderful. This is exactly what I need to learn. I just started with narrow band imaging and have had a hard time bringing out the blue. Thank you so much. On another issue, I recently got the pedestal problem with some of my images as your OIII. I solved it more or less by adding a pedestal value in WBPP but I can't figure out how I got the problem in the first place and why it affects some of my acquisition but not others. Could you shed some light, or, maybe a future video on the issue? Thanks!
Thanks for the detailed feedback as always! You support is really appreciated... I really need to look more into the Pedestal in general. Thanks for the idea!
Salut Cuiv ;) Tu parles au début de la vidéo de la difficulté de retirer le gradient. Est-ce que tu as déjà essayé avec GraXpert ? Sur plusieurs de mes images, il s'en sort bien mieux que ABE/DBE de Pixinsight.
This is brilliant, I want to have a go and follow along but I have a problem, since I have no idea what I'm doing! I downloaded your 2 fits files from the raw data link, and I've no idea what to do next as these aren't the 2 images you start with, or have I missed something? Apologies if this is in the description. Hopefully you direct me to another video covering it! Thank you!
Thanks Guy! Sorry I don't get the problem - the 2 fits are the correct files. If you're in PixInsight just run an AutomaticBackgroundExtraction of Order 1 on both and you should be good!
First seen this method by me! Supercool! Thank you for the great instruction. For the unperfect edges in the range mask I would use CloneStamp in the mask ( eventually in combination with an Adam Block - black "color bucket" to pic the pure black from). I mean the trick if you drag a clone and put a value of 0 in Pixelmath on the clone. Than you have pure black as reference point for Clone Stamp. Greetings and Clear Skies, Christian
Good idea with Clone Stamp Christian! I always prefer not to use such manipulation tools, but yes I think in this case it would absolutely be justified, and not a "betrayal" of the underlying data.
Merci. C’est génial. Mon seul souci est de me retrouver dans certaines photos qui ont des étoiles brillantes avec des halos bleus à la fin du processus. Suggestions?
Au pire du Starnet + extract mask L + convolution + apply mask + play with curves pourrait aider, mais je dois avouer ue les halos bleus ne me genent pas du tout, personellement!
@@CuivTheLazyGeek where I see disadvantages, I see growth and opportunity for growth. I think being confined to such bright white zone, we have had to attempt and improve our processing skills. I don't mind my bortle 9 skies anymore. Your work is great as always! Keep it up buddy! 🙂
Quiv! You will benefit greatly with the newer Topaz... I had ver. 3.0.3 (which has 'Low Light') and works quite well. But the latest version handles noise much better. Like it's learning or something :P! Anyway the differences are quite profound..
So I upgraded! But I wish I hadn't. The results are much worse than what I used to be able to achieve with Clear AI... I'm looking into ways to downgrade again...
Cuiv!!!!...What Did you do to your Rigs?......Out of Commission!!!!....LOL........Great Tutorial. I don't use PixInsight.....Yet....LOL......But its good to see how it works when I do. I primarily use Linux ( I'm a Programmer, and Technologist) so most of my processing is done Open Source.... But, I finally built a Windows Laptop for Imaging, Guiding and Editing..Just to make life easier...Ill Buy PixInsight soon... Look forward to the Next video....
@@CuivTheLazyGeek Yes I know it runs on Linux....Just nice to put everything into one platform so I don't have to bounce between machines....I hate going back and forth.....LOL.... Besides I can edit during the day when I am remote....Its a Convenience thing...because Like you, I'm Lazy...LMAO
Amazing video! Do you have a Patreon account or something ? I would love to support you! So, do you think this technique would be helpful when shooting Orion with a Dual narrowband filter, like IDAS NBZ? My images look too reddish, with very little blue..
Hi Cuiv, I’m shooting the Rosette Nebula now. What filters would you use? I’m shooting 5 min subs. How many of each? I have a mono camera with LRGBHa OS. Don’t want to waste time on filters not needed.
Hi Gary! Well on the Rosette, at least from here in Tokyo, I'd for for HOO first, then maybe add SII later! Probably completely ignoring LRGB. Number of subs completely depends on your conditions and how you see your SNR evolving, so I can't help there. I'd probably shoot to have twice as much OIII as Ha, as the Ha can get a great SNR very quickly. Good luck and clear skies!
impressive! was what I was looking for. one thing: with l-extreme, gradient reduction, noise reduction and deconvolution do you work in the two separate channels (ha and o3) or the combined image ha + o3? Thank you
Thank you Daniele! I would typically do those operations on each channel separately if I separated channels in the first place. It does give more control over the operations.
@@CuivTheLazyGeek What do you say if all the gradient, noise and deconvolution reductions are done in rgb and then after the stretch the channels are divided as in your video to create the rgb image has + o3 and then move on to the masks? It might work?
Thanks Cuiv, very helpful. Hey I know it is off topic but may I ask how do you review your subs before stacking? Is there a particular software you use to quickly review and weed out the bad ones? I started with my Canon DSLR and was using Backyard EOS which made it so easy to page through all the subs and delete bad ones. I'm working with a ASI294MC and NINA now and not sure of the best way to review the fits files. I'm trusting DSS and taking a low percent. ;o)
I use the preview in ASIAIR (very good at finding thin clouds) as well as the Blink tool on debayered frames in PixInsight where I remove the worst offenders. Then it's automatic weighing to ignore some frames more than others
Mind blown today - there was one simple thing that you showed in this video that totally upgrades my processing. Can’t believe I didn’t see it before 😮 thanks for the help!
Glad it helped!
Wonderful tutorial. Thanks to you, I was able to greatly improve my picture of the lion nebula to show the beautiful blue from my dual band filter. Thank you for the great tutorial and the new techniques you taught me.
Cuiv this is fantastic! Rainy days here in Chicago so I'm going to give this workflow a shot. Thank you for showing all the steps; I'm going to follow along!
Thank you, I hope you enjoy the processing!
Thanks for the video!!. Nice trick with the masks to pop up the OIII. I extrapolated it to Siril/Gimp and it really made a difference. Thanks!!
Glad it helped!
Followed this tutorial and did my all time best picture of NGC7000. Thanks!
Great video again Cuiv! - lots of great points and tips! - appreciated seeing the considered use of Topaz too, it's such an incredible tool to have
Clear skies!
The wonderful luke is here !!
Just saw I was not even subscribed ! How could I ??? On my other one I am 😂😂
@@AstroB7 Haha!! You're too kind mate :-D Thank you so much!
Thanks Luke! Cool to see you have some fans here as well! :D
@@CuivTheLazyGeek Hey! My pleasure Cuiv! - It always amazes me to be honest, I have to pinch myself! - everyone has been so kind and welcoming right from the start :-)
Clear skies!
Fantastic. I used this technique on the Soul also. Not much data, will get more, but it worked really well. Thanks for the video.
Glad it helped!
Thanks a lot Cuiv! I have this filter L-Extreme and I have this problem this blue. Now I put in practice this metod.
Good luck!
Encore une EXCELLENTE vidéo !!! Merci à toi. J'ai investi dans un filtre L Extrême grâce à ta vidéo sur les filtres et en appliquant ta méthode de traitement c'est impressionnant au résultat malgré mon ciel en Bortle 7 à 8. J'ai découvert ta chaîne en cherchant des renseignements sur les caméras pour le CP (j'ai d'ailleurs acheté une ASI533 après avoir visionné ta vidéo) et depuis je ne fais que des progrès dont une bonne partie grâce à tes conseils. Encore merci et bonjour de France !!!
Genial!!! C'est vraiment cool de pouvoir aider comme ca! Clear skies en France aussi! :)
Merci,
Ta vidéo tombe à point nommé. Je galère pour faire ressortir les couleurs en SHO.
Bravo pour ces petites vidéo rapides, simples et efficaces
Content de pouvoir aider!
Just like magic. I'll be using this technique for my Giant Squid data. Thank you very much for the video.
Thank you! Good luck!
Thanks for this tutorial Cuiv. it is easy to follow and understand.
My pleasure, glad it helped!
In this processing of the blue work flow I’m impressed. Being sorta retired I can spend hours and hours in pixinsight. I’ve watched all the osc color sho videos for pixinsight and Astro pixel processor.
I believe I have found the one , like the one video with practice I can master it. I use the L extreme filter .
I have been thinking about the $2000 plus equipment set up for narrowband . I mean I just bought the Stellarvue avx 102t so why not. But then I told myself wait and see what processing advancements come up. You did it thank you. I might have to watch it 50 times but I’ll get it.
Glad this is helpful! Good luck!
I love how you were talking to Pixinsight during the dynamic background extraction like it understood what you were saying hahaha.
Whoever came up with this was idea for processing O data was brilliant. I am looking forward to trying it soon.
Pro tip: talking to PI makes it process pictures better! :D
🤣 best thing I've heard in a while 'credit where credits due: I don't remember where it's due' 🤣
Really great tutorial. I'm struggling to find a combination I like for my new L-Extreme filter because of the heavy reds. This looks really nice thanks!!
Watched it again today after imaging the Soul Nebula this week. Ill definitely use your tips for post-processing and refer to your video in the description. Thank you for sharing your expertise.
I am about to process my latest Soul Nebula, fantastic timing to see this! Thanks for sharing!
Excellent, glad the timing was right! Thanks for the feedback!
Excellent video, and the best way that I’ve seen to do this in pixinsight. I do basically the same blue enhancement process, but in photoshop.
Any tutorials fpr PS?
@@KMuffel not that I know of. For me, the only really difference in my process is that I stack and calibrate in Astropixel Processor, so I separate my HA and Oiii in APP then do my channel combination and masking in Photoshop.
Thanks Jeff!
Wow - congratulations - excellent tutorial and extremely helpful. Great image. Thank you so much. I learnt a lot and am inspired to have another go at processing.
Thank you Peter!
Thanks for this vid Cuiv. I’ve really struggled in the past to get anything other than red in my narrowband images. I’ll tuck this process away in my toolkit for future use.
My pleasure Andy, I really hope this helps!
Nice upgrade to the lighting, mic(?), & camera/lens. The Bokeh and lighting look great. Audio sounds really smooth and clean. keep up the great work!
Thank you! Lighting is as usual, but the camera/lens/mic have indeed changed. Thanks for the feedback!
Merci beaucoup, je m'en suis sorti grâce à toi avec ma 533MC. J'ai également acheté DenoiseAI c'est formidable !
Thank you very much for this great tutorial !
Congratulations, I am following your tutorials with great interest and I am happy that I have learned a lot with you thank you for everything you do for us
Thank you Thank You Thank You
I have been struggling trying to get the blue channel to show up more using the L Extreme filter
Glad this helped!
Great Informative Tutorial Cuiv!! Love That Colours of Soul!! Reddish brown and Blue Is Nice Gradient👍🏻
Thank you!
Cheers mate , just run though the process and it come out pretty darn good 👌🏻
Awesome, thanks for that feedback David!
I'm still so amazed at what you produce from Tokyo skies Cuiv! Well done, once again (golf clap)
Thanks so much! It's a challenge but it's a fun challenge!
Very helpful - just one thing - IMHO denoise AI works better on starless image - so try to denoise it first, then pixelmath it together with stars
Outstanding video. I had never seen the EZ process scripts so that was a big help. A lot of these tools I have used before but this workflow seems to have gone better than my usual! I still opted to process the HOO and a Lum separate to combine later. Mostly because even with 15 hours of O3 (NGC 7822) it was still pretty noisy.
Just a fantastic video. Really fantastic.
Thank you Michael!
Awesome thanks 🙏, so much better thanks the feathered selections I had used in the past!!! Thanks. I posted my results tonight on Instagram and tagged you
I saw, great result! You can also play around with histogram transformation (and convolution for blurring the mask) after extracting luminance instead of range selection to be subtler in the effects!
So cool! Bookmarked this video.
Thank you! Glad it's helpful!
Hi from Italy, congratulation
Excellent tutorial. Love it
Thank you Juergen!
Top merci pour ce tuto ! J'ai justement eu du mal sur cette même cible début octobre que j'ai shootée avec le L-eXtreme. Pour ma part, toute la partie OIII ressort plutôt très pâle et claire. Du coup je vais essayer cette méthode mais à voir dans mon cas comme c'est fort clair si je parviendrai à y mettre de la couleur sans tricher avec un calque de bleu par-dessus.
Et t'es bien relancé là, ça fait plaisir de revoir autant de vidéos ;-)
Genial que ca puisse aider Manuel, bon courage avec le processing!
Wow… i loved this. I think i Will have quite some time in post processing :)
Awesome, enjoy the post processing!
Nice video Cuiv. Even if it seems a little bit over processed, you convince me to try Topaze Denoise
Thanks Franck!
This is really cool! I have to try it out.
Thank you! Hope you enjoy it!
Super video, keep that music at the end, nice touch.
Thank you!!
Never knew about Dark Structure Enhance, will need to use it in future!
It's a really cool script, I think you'll enjoy!
The Blue expression made me lol Cuiv, saying it might phsycological. Don't forget that 0.05 Ha. Cool tips 👍
Hahaha, thanks Ollie!
Thank you for thr video. It was very useful.
Thanks for another great tutorial!
Thanks for the feedback!
Cuiv...you and are working through all the same issues. I use mono so here's what I do. Process HOO, Process SHO, go into photoshop and blend the blue into the red with layers and a soft brush.
Thanks for that! Unfortunately I don't ever want to use Photoshop, I'm not a big fan of Adobe in general, and how crazy expensive their subscriptions are...
@@CuivTheLazyGeek ok I agree this method is better. Just tried it on the Eagle Nebula.
Wow! Looks very good.
Thank you!
Great video! Looks like you had some good data to begin with too.
Thanks Paul!
Very interesting processing tips!
Thank you Mario!
Great video. I do something similar with my images. It can be as easy as doing an unlinked stretch and then making a mask of the B/G channel and applying curves.
Yes sometimes that works too (I have another video where the unlinked stretch gives a good starting point), but often that's not the case!
Great tutorial as always 👍
Thank you!
Your timing could not be better. I literally am doing a CFA drizzle integration from my first time out w/an L-eXtreme filter as I type this. 4 hours on Melotte 15. I'll let you know how it goes. :)
Oooh yes, good luck with that processing!
@@CuivTheLazyGeek NOT as easy as your example, the [OIII] channel is sorta spread throughout, not distinct. Good times. :) Working on it...
interesting technique. And will try something similar in the future as I'm working on an HOO project where I'm hoping to really get some blue's going. I don't have pixinsight, but I reckon I could do something similar with converting/using the Oiii as a mask for a colour balance/levels/hue adjustment layer in photoshop.
I'm sure something like that will work in Photoshop! Good luck with processing!
That’s yet another great video, Cuiv! Great to see how you bring those blue’s forward and nice how you used DBE to get rid of the introduced artifacts. Usually I do DBE at the beginning and never touch it again, but for these situations it can work very well. It’s of course a matter of taste, but as much as I try, I can never really appreciate the results of TopazDenoise. It tends to make the image a bit plasticky/artificial. Hope your scopes will be back in operation soon!
Thanks for the feedback! Yeah I understand on TopazDenoise, it really is a double edged swort!
Excellent tutorial, appreciated, keep on the good work dear québécois compatriote :-)
Thank you! (Although I'm not from Québec :-))
@@CuivTheLazyGeek I thought so, you seem to have a bit of a French Canadian accent (just like I do).
Where's home for you?
You would love the South of France, mountain tops accessible by car, clear skies
Do you believe it is better remove noise at the end of the process? Excellent videos. Thanks
One note:
When using ABE and DBE you should choose the correction algorithm based on what you are trying to correct.
Sky gradients are an "additive" component to the image (since every pixel collects " N " photons from the nebula + " M " photons form light pollution), while vignetting is a "multiplicative" component (every pixel collects " N*L " photons, where N is the number of photons emitted by the nebula and L is a scaling factor telling us how much of those photons actually reach the sensor. In the middle of the image L is 1, at the corners it might be 0.7 due to vignetting "catching" 30% of the light incoming). You should use "subtraction" for sky gradients, and "division" for vignetting.
I hope my comment makes sense 😅
Your comment absolutely makes sense! A long time ago I was doing this religiously (and yes I tried division when preparing the video) but for the life of me I've never see division doing better than subtraction... I know in theory it should for vignetting but...
Hail Cuiv!!!
Damn! That I never thought of this 😂. Thanks for the tutorial!!
Thanks for the feedback! So many methods available.. :)
A very handy technique Ann, the best, powerful and simple enough. Certainly I’m going to try it. Thanks for posting it, Cuiv.
May I ask why do you reduce noise outside of Pixinsight?
Regards,
Alfredo
I wish pixel math would be so easy to do in StarTools. Thanks for the tutorial!
Thanks Lucas! I have to say I could never get properly use StarTools... :)
Question....do you try for the most pleasing colors/combination (artistic license)or try to stick more strictly to reality? if reality what is your guide?
When I do RGB/OSC shots, I stick to reality using Photometric Color Calibration. For narrowband you stick to reality, but not to what human eyes can detect. You map relevant physical bandpasses to different colors, and how you do that is completely up to you. Hubble nebulae pictures typically use that same technique. It is physically correct and appropriate, but since there is no RGB reference dictated by our eyes, there is a lot of freedom in processing.
Agree, with some reference like Osc. It can be at least with in some reasonable range of realistic representation. Albeit it might not be as sexy I prefer to try and stay within a certain range. Thank you, keep up the good work!
Great tutorial Cuiv👌
Thank you!
How wonderful. This is exactly what I need to learn. I just started with narrow band imaging and have had a hard time bringing out the blue. Thank you so much. On another issue, I recently got the pedestal problem with some of my images as your OIII. I solved it more or less by adding a pedestal value in WBPP but I can't figure out how I got the problem in the first place and why it affects some of my acquisition but not others. Could you shed some light, or, maybe a future video on the issue? Thanks!
Thanks for the detailed feedback as always! You support is really appreciated... I really need to look more into the Pedestal in general. Thanks for the idea!
Salut Cuiv ;)
Tu parles au début de la vidéo de la difficulté de retirer le gradient.
Est-ce que tu as déjà essayé avec GraXpert ? Sur plusieurs de mes images, il s'en sort bien mieux que ABE/DBE de Pixinsight.
J'ai essaye GraXpert mais pour moi il fonctionne aussi bien qu'un starless DBE donc j'ai la flemme de l'utiliser... je vais le retester quand meme!
This is brilliant, I want to have a go and follow along but I have a problem, since I have no idea what I'm doing! I downloaded your 2 fits files from the raw data link, and I've no idea what to do next as these aren't the 2 images you start with, or have I missed something? Apologies if this is in the description. Hopefully you direct me to another video covering it! Thank you!
Thanks Guy! Sorry I don't get the problem - the 2 fits are the correct files. If you're in PixInsight just run an AutomaticBackgroundExtraction of Order 1 on both and you should be good!
First seen this method by me! Supercool! Thank you for the great instruction. For the unperfect edges in the range mask I would use CloneStamp in the mask ( eventually in combination with an Adam Block - black "color bucket" to pic the pure black from). I mean the trick if you drag a clone and put a value of 0 in Pixelmath on the clone. Than you have pure black as reference point for Clone Stamp.
Greetings and Clear Skies,
Christian
Good idea with Clone Stamp Christian! I always prefer not to use such manipulation tools, but yes I think in this case it would absolutely be justified, and not a "betrayal" of the underlying data.
@@CuivTheLazyGeek
Yes. Because you manipulate only the mask. 😀
Merci. C’est génial. Mon seul souci est de me retrouver dans certaines photos qui ont des étoiles brillantes avec des halos bleus à la fin du processus. Suggestions?
Au pire du Starnet + extract mask L + convolution + apply mask + play with curves pourrait aider, mais je dois avouer ue les halos bleus ne me genent pas du tout, personellement!
Nickel, merci!
Tout le plaisir est pour moi :D
Good video! I have the same problem as you being in San Francisco, 6-8 hours in and my images still can't compare to other people from darker skies.
Thanks Angus! Yep, it's always like that... we're disadvantaged from the get go, need to image in dark zones...
@@CuivTheLazyGeek where I see disadvantages, I see growth and opportunity for growth. I think being confined to such bright white zone, we have had to attempt and improve our processing skills. I don't mind my bortle 9 skies anymore. Your work is great as always! Keep it up buddy! 🙂
Great video, thanks! :)
Thank you!
Quiv! You will benefit greatly with the newer Topaz... I had ver. 3.0.3 (which has 'Low Light') and works quite well. But the latest version handles noise much better. Like it's learning or something :P! Anyway the differences are quite profound..
Thank you! I guess I will pay some more cash to get access to the latest version...
So I upgraded! But I wish I hadn't. The results are much worse than what I used to be able to achieve with Clear AI... I'm looking into ways to downgrade again...
AI Clear is there. Same thing just labeled 'Clear'. There should be 5 options to choose from. Standard, Clear, Low Light, Severe Noise and RAW.
Cuiv!!!!...What Did you do to your Rigs?......Out of Commission!!!!....LOL........Great Tutorial. I don't use PixInsight.....Yet....LOL......But its good to see how it works when I do. I primarily use Linux ( I'm a Programmer, and Technologist) so most of my processing is done Open Source.... But, I finally built a Windows Laptop for Imaging, Guiding and Editing..Just to make life easier...Ill Buy PixInsight soon... Look forward to the Next video....
Pixinsight does run on Linux by the way! So that will be fine! It actually runs better on Linux than on Windows!
@@CuivTheLazyGeek Yes I know it runs on Linux....Just nice to put everything into one platform so I don't have to bounce between machines....I hate going back and forth.....LOL.... Besides I can edit during the day when I am remote....Its a Convenience thing...because Like you, I'm Lazy...LMAO
How to pop up the OIII in Photoshop?
Amazing video! Do you have a Patreon account or something ? I would love to support you!
So, do you think this technique would be helpful when shooting Orion with a Dual narrowband filter, like IDAS NBZ? My images look too reddish, with very little blue..
one thing i dont understand,how can you get blue from green +red
Hi Cuiv, I’m shooting the Rosette Nebula now. What filters would you use? I’m shooting 5 min subs. How many of each? I have a mono camera with LRGBHa
OS. Don’t want to waste time on filters not needed.
Hi Gary! Well on the Rosette, at least from here in Tokyo, I'd for for HOO first, then maybe add SII later! Probably completely ignoring LRGB. Number of subs completely depends on your conditions and how you see your SNR evolving, so I can't help there. I'd probably shoot to have twice as much OIII as Ha, as the Ha can get a great SNR very quickly. Good luck and clear skies!
The intro threw me for a loop, I was thinking, "WHAT? No 'HEY GUYS!'?" 😅
Hahaha it was still there though! :D
Noce video, thanks! io I shot my image with l-enhance filter, how do I separate those channels?
In PixInsight you have the ChannelExtraction process, or a button top-left that does that. You could also use the new WBPP channel separation feature.
@@CuivTheLazyGeek thanks a lot! I'll make some process during those cloudy days here in italy ;)
impressive! was what I was looking for.
one thing: with l-extreme, gradient reduction, noise reduction and deconvolution do you work in the two separate channels (ha and o3) or the combined image ha + o3? Thank you
Thank you Daniele! I would typically do those operations on each channel separately if I separated channels in the first place. It does give more control over the operations.
@@CuivTheLazyGeek What do you say if all the gradient, noise and deconvolution reductions are done in rgb and then after the stretch the channels are divided as in your video to create the rgb image has + o3 and then move on to the masks? It might work?
Thanks Cuiv, very helpful. Hey I know it is off topic but may I ask how do you review your subs before stacking? Is there a particular software you use to quickly review and weed out the bad ones? I started with my Canon DSLR and was using Backyard EOS which made it so easy to page through all the subs and delete bad ones. I'm working with a ASI294MC and NINA now and not sure of the best way to review the fits files. I'm trusting DSS and taking a low percent. ;o)
I use the preview in ASIAIR (very good at finding thin clouds) as well as the Blink tool on debayered frames in PixInsight where I remove the worst offenders. Then it's automatic weighing to ignore some frames more than others
Very cool; which camera / filters did you use to capture the raw data?
Thank you! 1600MM-Cool with 3nm HO Astrodon filters
@@CuivTheLazyGeek Thanks!!! Yeah, I think I need to get into the cooled mono camera scene....
Please keep in mind, color theory tells us reds come forward and blues recede.
Thank you! BTW your not laughing alone, we are smiling and laughing with you ;-)
Hahaha good to know, thank you Mathias!