PixInsight Forum (historical)

PixInsight => Workshops and Conferences => Topic started by: vicent_peris on 2013 November 05 13:05:04

Title: Munich PixInsight workshop - Results
Post by: vicent_peris on 2013 November 05 13:05:04

Hi,

I want to publish here some of the results of the image processing techniques we learnt in the 2013 Munich workshop.

People showed a lot of interest on narrowband imaging so we made an in-depth review of these imaging techniques. First we reviewed how to introduce the H-alpha signal into a color image when both images are in linear state. This technique allows the H-alpha signal enhancement without affecting the color balance of continuum-emitting objects. Here you have before and after images with data by Leo Bette:

(http://astrofoto.es/astrofoto/foros/workshops/Munich-2013/M51.jpg)

We also reviewed techniques to enhance emission-line objects in non-linear images. This is an HaRGB image with data by Velimir Popov (left RGB; right HaRGB):

(http://astrofoto.es/astrofoto/foros/workshops/Munich-2013/IC4628.jpg)

We didn't have the time to review everything I prepared for the workshop. I provided n USB stick for each participant in which they have all the educational data. In this stick they have additional PixInsight projects with all the processing steps. An interesting example is the one below with M27 data by Max Bacher.

This example show at left a broadband RGB image. The middle image is a narrowband (R:H-alpha; G&B:O-III). The right one shows the mix of both to correct star colors:

(http://astrofoto.es/astrofoto/foros/workshops/Munich-2013/M27.jpg)

A SHO example with the same data. Left the SHO image with color calibration taking as white the light of the nebula; at right the same result with corrected star colors:

(http://astrofoto.es/astrofoto/foros/workshops/Munich-2013/M27SHO.jpg)

Finally, an example we reviewed about dynamic range management with data of a M42 image by José Luis Lamadrid and me. Before and after images:

(http://astrofoto.es/astrofoto/foros/workshops/Munich-2013/M42.jpg)

People got different processing examples covering techniques about LRGB composition, HDR composition and dynamic range management, star masking and narrowband imaging (7 different ways to combine narrow and broad band data).


Hope you like it ad we did. :)
Best regards,
Vicent.

Title: Re: Munich PixInsight workshop - Results
Post by: mschuster on 2013 November 05 13:15:36

Thank you Vicent, looks like a very successful workshop! I would like to learn these techniques. All are impressive, maybe the Popov image the most for me.
Mike
 

Title: Re: Munich PixInsight workshop - Results
Post by: Alejandro Tombolini on 2013 November 05 15:24:38

Thank you Vicent, I hope I can learn these techniques soon!. :) All beautiful images.
Saludos.
Alejandro.

Title: Re: Munich PixInsight workshop - Results
Post by: marekc on 2013 November 05 18:03:09

I agree with Mike. All of those images look very nice, the Popov one particularly so! I'd love to have been there to learn about these techniques, particularly the M51 (Leo Bette) image and the Popov image.

- Marek

Title: Re: Munich PixInsight workshop - Results
Post by: Josh Lake on 2013 November 05 19:09:42

Fantastic! I too would love to hear about the HaRGB technique that led from the first to second image by Velimir Popov.

Title: Re: Munich PixInsight workshop - Results
Post by: FunTomas on 2013 November 05 23:24:55

Interesting results Vicent. I like the second image. Is it possible to see short description of the processes? For example history of the processed images. Many thanks.

Title: Re: Munich PixInsight workshop - Results
Post by: Zocky on 2013 November 06 13:49:56

Fantastic results.
I would like to see tutorial for M51.

Title: Re: Munich PixInsight workshop - Results
Post by: pfile on 2013 November 06 17:00:59

regarding M51 probably harry's video describing vicent's continuum method is a good start.

regarding the Popov image this may be a start: http://pixinsight.com/tutorials/narrowband/theory/en.html

rob

Title: Re: Munich PixInsight workshop - Results
Post by: Zocky on 2013 November 06 22:23:57

Thank you Rob, I'll take a look.

Title: Re: Munich PixInsight workshop - Results
Post by: mattssporre on 2014 January 02 10:14:16

Is it possible to buy a copy of these tutorials?

BR
Matts

Title: Re: Munich PixInsight workshop - Results
Post by: Giorgio on 2014 January 07 06:02:21

Hello,
I would like to be at the conference, but you can not go. :-[
Also I'd be interested in buying the tutorial of the conference.
Giorgio.

Title: Re: Munich PixInsight workshop - Results
Post by: mcgillca on 2014 January 07 07:47:31

Hi - I attended the workshop, and used the technique on M81. I published this on astrobin, along with a description of the technique. I also posted the "before picture" so that you can compare.

See:   http://www.astrobin.com/68513/0/ (http://www.astrobin.com/68513/0/)

Colin

Title: Re: Munich PixInsight workshop - Results
Post by: Zocky on 2014 January 07 09:52:43

Thank you for sharing Colin.
You said in your comment that you use Badder 36 mm RGB filters, and that R filter is around 120 nm. Can you please tell me have did you came up with that number? Is there a formula to calculate that or did you find that info on Badder site?

Regards
Zoran
 

Title: Re: Munich PixInsight workshop - Results
Post by: mcgillca on 2014 January 09 05:04:57

Dear Zoran,

I just estimated the number from the transmission curves for the filters, which I think I found on the Baader web site.

http://www.baader-planetarium.de/sektion/s43c/bilder_43c/rot_gross.gif (http://www.baader-planetarium.de/sektion/s43c/bilder_43c/rot_gross.gif)

Colin

Title: Re: Munich PixInsight workshop - Results
Post by: Zocky on 2014 January 09 12:42:41

Thank you Colin.

Title: Re: Munich PixInsight workshop - Results
Post by: kwiechen on 2014 January 11 05:43:17

Very nice images from this workshop! Is it possible to get a copy of the tutorials?

Best regards,

Kai