Author Topic: Distortion Module  (Read 2958 times)

Offline TobiasLindemann

  • PixInsight Addict
  • ***
  • Posts: 126
    • Trackingstation
Distortion Module
« on: 2014 March 23 10:48:47 »
Hi,
I want to register images of two different lenses. Due to the distortion is very different, PI don't matches the pictures perfectly. I have tried the two registration modules and "splines" is a little bit better but not good. The best I get is the following result:
http://www.tracking-station.de/zeigl/reg2.zip

Here you can download the two unregistered images:
http://www.tracking-station.de/zeigl/Testbilder.zip
May someone please have a look at it?
If you wonder, these are no real astrophotos. These are only pictures of a picture ;-)

At the top of the registration process there is a field where you can load a distortion module. I think this may help, but I don't know where I can get it. Do I have to produce this by my own and how, or where I can find it?

Greetings
Tobias

*edit*
Now I have the solution. The mistake was, that I used the Jpegs for registration. As I used the Raws the result was much better:
http://www.tracking-station.de/zeigl/reg3.zip
In the upper left corner there is a little divergence, but this is ok for me.

The only open question is: what is the Distortion Module and where I get it?
*edit*

*edit2*
if you want to have a look at the raws, you can download it from here:
http://www.tracking-station.de/zeigl/raws.zip
and here there is a blink-gif of the two lenses, aligned with PI (splines, distortion enabled):
http://www.tracking-station.de/zeigl/CanonTamronBlink.gif
I was really astonished of the qualtiy of the Tamron. Anyway it is almost 1/4 of the price of the canon and is a zoom-lens, although the canon is not the newest one (10 years old).
As I saw my first result of the aligning, I was really disappointed, but now I am acknowledged again that PI is the best astrophoto-software I ever had.

PI rules :-)
Tobias
*edit2*
« Last Edit: 2014 March 24 01:08:17 by TobiasLindemann »

Offline TobiasLindemann

  • PixInsight Addict
  • ***
  • Posts: 126
    • Trackingstation
Re: Distortion Module
« Reply #1 on: 2014 March 27 04:30:19 »
O.K., the alignment works great, but I am still confused by the Distortion Module. Does anybody knows, how I get the Distorion Modules? I think I have to build it by my own, but I don´t know how. For some time there was a post, you can create it by using the ImageSolver in near future. Is this option implemented yet?

Greetings Tobias

Offline Andres.Pozo

  • PTeam Member
  • PixInsight Padawan
  • ****
  • Posts: 927
Re: Distortion Module
« Reply #2 on: 2014 March 27 05:23:56 »
O.K., the alignment works great, but I am still confused by the Distortion Module. Does anybody knows, how I get the Distorion Modules? I think I have to build it by my own, but I don´t know how. For some time there was a post, you can create it by using the ImageSolver in near future. Is this option implemented yet?

Greetings Tobias
In the documentation of ImageSolver there is a procedure for creating distortion models:
http://pixinsight.com/doc/scripts/ImageSolver/ImageSolver.html#__section002__

Offline TobiasLindemann

  • PixInsight Addict
  • ***
  • Posts: 126
    • Trackingstation
Re: Distortion Module
« Reply #3 on: 2014 March 27 21:01:11 »
Andres: Thank you,this will help me  :)
Tobias: rtfm  ;)