PixInsight Horsehead and Flame Nebulae processing! (HaRGB)

[@rossblezard574]

You made that look ridiculously easy!!! I have been getting much better at Pixinsight over the lasy year, but I still spend hours and hours on a single image... this really was useful, thank you!

[@SkyShedPODTeam]

Snazzy! Another great one Shawn! When you said "You don't want to apply too much colour saturation", I got the feeling you were talking directly to me! CS!

[@VisibledarkAstro]

LOL. Thanks Wayne! Glad the video was helpful. Cheers.

[@nadirteymurov1]

Love your processing videos, learnt a lot from them

[@davecurtis8833]

Really enjoyed this tutorial Shawn. Would be fun to do a version 3 of this tut using the latest star removal tools and AI to see what the difference would be. Cheers Dave

[@Mr6sess]

I want to hug you right now man! So many people don't realize how distracting the music can be when your SERIOUSLY trying to learn things or hoping to find an answer to specific questions. I have ditched on plenty of vids because the music was distracting.

[@PaweChyl]

Great tutorial thank you! And what a coincidence, I have been taking exposures of horse head nebula just 2 days ago :) I have already processed my image but will try your way once again. Have a lovely weekend!

[@kryff1]

Thanks Shawn for anaother brilliant video. Quite a few things in there that I was not aware of and will be tying out soon!

[@VisibledarkAstro]

Glad to help!

[@rickbohart6788]

Thanks Shawn! Excellent video! My first time see the power of the game script. So many uses. Thanks again.

[@johnadastra1754]

Thanks for the tips and trips, Shawn! There's always some fine techniques in your vids I never knew before. Plus you got some great quality master lights to work with. Nice!

[@elbagre71]

Thank you, thank you and thank you for sharing this video with us! It helped me tremendously! I really appreciated your effort! Long live VisibleDark!!!

[@rogerwilkinson2818]

One of the best processing videos you have done. I can’t wait to collect all my subs on this target

[@markwood1660]

Thanks for this Shawn, I am despairing with my O3 and ran some RGB last night so perfect timing for me to find this one :). another excellent workflow added to my list.

[@JohnMcGFrance]

Thanks Shawn. I learn something new every time I watch one of your videos. I tried this workflow on The Witch’s Broom Nebula and got a very nice result. Look forward to future processing videos. Are you perhaps considering a follow-up to your beginners Pixinsight course? I’d love to see an intermediate/advanced course, especially covering mono users and narrowband processing ideas. Clear skies.

[@RaysAstrophotography]

Well done Shawn! Love your tutorials!

[@VisibledarkAstro]

Thanks Ray! I enjoy your channel as well. Cheers!

[@robertoventurelli9988]

Great video . Thanks a lot for the workflow cristal clear.

[@pawepiechnik6248]

Great video. Thx

[@danboulton2128]

Great tutorial Shawn, just what I need as I'm collecting data on this tonight and tomorrow night. I'm also using the Esprit 100 trip.

[@VisibledarkAstro]

Awesome Dan! Good luck!

[@enriqueboeneker]

Great tutorial, Shawn! Cheers!

[@centenojoel]

I enjoyed this video and I processed the same targets as instructed. The result was incredible! The script for adding H-alpha and the instruction on applying TGV Denoise have been transformative on my pictures. Thanks Shawn.

[@VisibledarkAstro]

Fabulous! Glad the video was helpful. Cheers

[@jimmydigital00]

Great video!! Thanks for sharing your process. The GAME tool is going to be a game changer for me. Never knew that existed.

[@clifforddw]

This is a great tutorial, thanks very much for taking the time to share your knowledge.

[@AmritP]

looks awesome mate and thanks for the tutorial! just picked up PI and learned a lot from your vids

[@martinjacobvitz886]

Another. super helpful instructional video. Thanks so much for posiing.

[@Bigwhite200]

Awesome image, love it

[@davepastern]

another super tutorial Shawn!

[@Steve_The_Ignorant_Astronomer]

Nice Job ... Little fast but thats fine can always stop it... I would do the background a bit darker , but I seem to make all my shots on the darker side

[@JonnyBravo0311]

Hi Shawn! Quick question for you regarding the pixel math combination expression you used at 20:05. I I'm understanding the math, for the R channel, the "max" red value of either the original RGB or 1.8 times the value of the Ha pixel is used. What constitutes "max"? Is it color value? For example, if the R pixel of the target image is 150 and 1.8Ha is 200, then the Ha pixel is used. I can understand that, but I don't know the scale. Is it just using the typical 0-255 values normally seen for RGB values? OK... a second question. Why not just use the NBRGBCombination script? Finally, if you wanted to include the Ha in your L channel, how would you do so? Do you have a video on an L/Ha combination? Thanks!!!

[@adamhardy5103]

Thank you for this - a great video and massive help. Please can you put what the pixel math equation is, mine keeps failing. Thanks again!

[@adamhardy5103]

ignore that - got it working! thanks

[@VisibledarkAstro]

Hi Adam - here's the pixelmath for combining the Ha and RGB... R: max($T[0], 1.2*Ha) G: $T[1] B: iif($T[0]

[@Deeko76]

New to PI, have learned the SHO side of things and happy with the workflow, now time to do broadband on PI. I have HaLRGB data for the Horses Head, before I start your tutorial could I easily add the L to the workflow with your tutorial? ta!

[@VisibledarkAstro]

You could add the lum. You'd want to add it to the finished RGB stack using the LRGB combination tool. Then add your Ha data into it.

[@Deeko76]

@@VisibledarkAstro Got it, works a treat :)

[@simonpepper5053]

Hi Shawn incredible tutorial will be following this tonight. May have missed it but what subs did you use for this please in each channel? Thanks

[@andrewwong1228]

Amazing details! Can these techniques apply to an OSC camera with an L-eNhance filter splitting into Ha Oiii and fake Sii as RGB in processing?

[@VisibledarkAstro]

Some of the techniques could apply but there is a slightly different workflow for doing what you want. I have a video demonstrating fake SHO processing (with OSC) in PixInsight.

[@trevorworrall1226]

Hi , great tutorial , one question , You applied an Ha mask prior to adding the Ha , I think you said its to protect area's we don't want Ha ( I think ) but the Ha image would only be added to area's where Ha existed .. A clone mask would block it from the area's it should be present unless you inverted it , please can you clarify ..

[@aww100100]

Great video. Can you tell what steps I need to add or change in PI if I used a dual band filter(ha hb oiii) on a OSC cooled camera? TY.

[@VisibledarkAstro]

Hi Andrew. That's a little tough to get into here. Something I'd have to explain more in an email or another video! But some of the steps would be similar yes. Not all though.

[@astrocapetown4955]

Nice video! Do you find this HaRGB method preserves the star colours better than the other combine methods?

[@astrojourneyuk]

Here's the PixelMath magic R/K: max(sT[0], 1.8*Ha)

[@dijonpepperberry]

quick question: why division AND subtraction on each? why not just division OR subtraction

[@AnakChan]

I noticed at the start when you had 3 separate mono for each filter. Prior to the dynamic crop & DBE, were they linearfitted to each other?

[@steveduke9045]

Why division before subtraction on the background extraction? Never seen that before.

[@VisibledarkAstro]

Hi Steve - Division will help remove any vignetting still present. Subtraction will help remove gradients. Cheers!

[@peterbriggs3408]

Why division then subtraction please? What's the logic there?

[@montygiavelli8125]

Your videos are very good, but sometimes your mouse is moving so fast that I have to rewind and replay. I'm not trying to criticize your videos, I'm just making an observation.

[@ch3rry1986]

what happened between 21:13 and 21:15? The photo looks completely different.

[@Sidecontrol1234]

at 20:56 how do I get my Pixelmath editor to look like yours?

[@VisibledarkAstro]

Hi Mark. you can't have it look that way. This video is a year old and Pixinsight changed the look of the PM editor in newer versions.

[@Sidecontrol1234]

@@VisibledarkAstro Hey yes I figured that out and got it working, thanks!

[@malcolqwe2]

when I do this my stars turn pink :/