HaRGBCombination Script

[prokyon]

Thank you very much for that srcipt! The first time in my astrophotographers life I am happy with a HaLRGB. My results with PS were always different and it was really hard work - now it is fun. 

Here my result:

http://www.prokyon.startime.at/Bilder/M16M17_HaLRGB_80perc.jpg

Thank you Silvercup!!

[marekc]

Hi Prokyon,

That's a really nice image! I can't think of too many images that show both the Eagle and the Swan like that. The deep red Ha nebulosity shows up nicely, but the stars still look 'natural'. Great job!

[Ioannis Ioannou]

Hello guys,

Long time nobody bothered with this script. Today I needed it once again, and BTW I fixed two small issues :

1) Now there is an "AutoSTF Linked RGB" parameter, default uncheked. Most of the times my RGB images at this stage, are neither Background Neutralized, nor Color Calibrated, so having the script performing a linked-RGB STF is useless.

2) I made a better warning when you open the script without an active Image.

I would like to expand it (although free time is limited) , but I 'm lacking the theoretical background.
I just do not know the maths needed.
So any ideas/suggestions (plus the needed maths) are more than welcomed.

Version 1.4 attached.

[Ioannis Komianos]

Hello John,

That script is very useful!

Thanks for updating!

[mcbbcn]

Great script!  Thanks for all your efforts.

M.

[mcbbcn]

Hi,

I'm learning how to integrate this script into my current flow.  So, I have a couple of questions.

1) Do you apply this script before or after DBE?  I assume it's 'after' DBE, but I don't like to assume, so I wanted to check...

2) Also, I see that the script integrates the Color Calibration controls.  I usually run Background Calibration, and then Color Calibration in my RGB.  So, does the script color calibration takes care of Background Calibration 'and' Color Calibration? Or do I need to run Background calibration before I run the script with the Color Calibration previews selected? I assume that I have to run Background calibration, and I don't have run Color Calibration after I run this script.

If somebody could validate my assumptions, that would be very helpful.

Thanks for your help,

Miquel Casas
Portland, OR

[Ioannis Ioannou]

Hello Miquel,

Well, I'm not claiming to be an authority, I'm just telling you my flow, the way I feel better working with it.
I perform DBE before the script ( as the matter of fact, most of the times, I prefer DBE before even RGB combination. My feeling is that DBE works better on mono photos)
I do not use the Background Neutralization, Color Calibration and Green SCNR from inside the script, I prefer to just do the HaR-G-B with it and then perform these steps after. Although I have to admit the script seems to do a good job with them also.

Just my 2 cents.

[mcbbcn]

Hi Ioannis,

I've seen your work & I have a great respect for your opinion.  So, I'll definitely follow your advise.

Thank you so much for your help,

Miquel Casas
Portland, OR

[Astrodoc]

Hello all.  I've used earlier versions of the script fine.  I installed the latest (1.4) in MacOS64 version of PI 1.8.0 RC1.  I get the following error (I do have Ha and RGB images open):


*** Error [000]: /Users/rbrecher/Documents/PixInsight Scripts/HaRGBCombination.js, line 129: Error: GenericImage::Allocate(): Insufficient number of channels


Anyone know what's going on?  Happy hols to all, and best for 2013.  To the PI TEAM:  Great job, guys.  I know I speak for many when I say thanks for your dedication!

[Ioannis Ioannou]

Please try this (because for some strange reason I can not replicate the error under Windows) : open the script with a text editor and change at line 128 the true to false ( according to PCL's docs should be false and used to be false, how this got screwed up ? copy-paste I guess ).
Save and try again, should work ok (except if I have the same mistake somewhere else, again by copy-paste ) .

Please confirm and I'll release it as bug fix.

Thanks

[pfile]

don't you want to wait in case the bug is actually in PI 1.8? or else then you have to do your own regressions on the script. based on the bug reports coming in on 1.8 i think it's going to be a while before we are using 1.8...

[Ioannis Ioannou]

Aha!! 1.8 RC1 !! I did not upgraded yet, that's why I can not replicate it.
But in any case, according to PCL's docs, this point should had been false anyway. Just try it to see if fixes the specific error (I will not upgrade to 1.8 RC1 soon)

[Juan Conejero]

Hi Silvercup / John,

Sorry for not having included this script in the new 1.8.0 RC2 release (I overlooked it again, doh!). If I see no trivial problems on RC2, I'll release it as an update ASAP.

[Ioannis Ioannou]

Juan, I'm still using 1.7 !! 
RC2 solved the problems reported above with RC1 ?

[Juan Conejero]

RC2 solved the problems reported above with RC1 ?

Yes! I have just tested the script with RC2 and it works after a small fix. Change line #128:

   this.HaView= new ImageWindow(this.RGBView.image.width,
                                 this.RGBView.image.height,
                                 1,
                                 32,
                                 true,
                                 true,
                                 Ha_NAME);


with this:

   this.HaView= new ImageWindow(this.RGBView.image.width,
                                 this.RGBView.image.height,
                                 1,
                                 32,
                                 true,
                                 false, /* ### */
                                 Ha_NAME);


(because the image has a single channel, so it has to be in the grayscale color space). With this change the script seems to be working nicely. Could you please test it more thoroughly?