Author Topic: Noob with a problem  (Read 6917 times)

Offline drmorbius

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Re: Noob with a problem
« Reply #15 on: 2010 October 24 17:33:37 »
Thanks Phillip,

I'm getting the impression that PI is not the right tool for DSLR work... but thanks to you and everyone for their time and effort.  Much appreciated.

Maybe one day when I graduate up to real AP I'll have another go.

cheers -- randall

Offline Philip de Louraille

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Re: Noob with a problem
« Reply #16 on: 2010 October 24 17:49:32 »
Why don't you post one of your RAW frames? I can see if I can past the debayering step.
Philip de Louraille

Offline drmorbius

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Re: Noob with a problem
« Reply #17 on: 2010 October 24 18:01:01 »
Mate, you're too good to me   :)

But the forum will only allow me to upload a 192KB attachment... my raw image is 17.6MB.  Is there another place to upload large files like that?

Offline Philip de Louraille

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Re: Noob with a problem
« Reply #18 on: 2010 October 24 18:18:32 »
with this?  I'll need the end link, of course.

http://base.google.com/support/bin/answer.py?hl=en&answer=59462
Philip de Louraille

Offline drmorbius

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Re: Noob with a problem
« Reply #19 on: 2010 October 24 18:32:17 »
Here you go...

http://www.2shared.com/file/DadlqYYJ/IMG_8810.html

I'll be interested in how you go...

cheers

p.s. - beware the ads... the download link is in the fine print :)

Offline Philip de Louraille

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Re: Noob with a problem
« Reply #20 on: 2010 October 24 20:22:06 »
Some changes from what has been posted before
1) Format Explorer - DSLR_RAW - double-click
     Select Create Raw Bayer CFA_Image (note the monochrome key word!) + no black point correction

2) Open your image

3) Process | ColorSpaces | Debayer
     RGGB & apply to your opened image

4) Use the ScreenTransferFunction to see what's up in the image. Just press the boxed A on the left
     Your image is teal tinted.

5) Use BackgroundModelization | AutomaticBackgroundExtractor
     Use the defaults but, under Target Image Correction, select Subtraction (or Division, I did not see a difference but someone like Vicent will know better which one is better!) - Apply. Voila.

6) While the image is more "watchable", it looks noisy. But I do not know how long was the exposure and the likes. It has not been calibrated, and without stacking a few... well, there is that random signal/noise thing.

7) Someone more adept can now tell me how to make this better.

Cheers,
Philip de Louraille

Offline drmorbius

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Re: Noob with a problem
« Reply #21 on: 2010 October 24 20:37:33 »
Thanks Phillip,

You're a champion.  The image is probably over-exposed... I just grabbed one at random to try out PI before the trial expired.

This has given me a good overview of the "process" that needs to be followed and I'll read a few more tutorials so I can better understand what's happening.

If I ever work it out and end up buying PI, I'll write a tutorial for DSLR noobs like me  ;)

Thanks again for your effort, I owe you a beer if you every find yourself in Queensland, Australia...

cheers -- randall

Offline Philip de Louraille

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Re: Noob with a problem
« Reply #22 on: 2010 October 24 20:44:54 »
Hey Randall, you are very welcome.
Play with daytime pictures as well. An outside shot: buildings, plants, girls - erh, Sheilas!, , or whatever! Open them with PI and see if that teal tint is still there.

Best!
Philip de Louraille

Offline zerro1

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Re: Noob with a problem
« Reply #23 on: 2010 October 24 21:48:36 »
Randall
Watch Harry's Astroshed video's, I think he's even got one for getting the green out.
On the deBayering; there is a new script available here on the site that makes it so you don't have to convert to monochrome first. I did my first stack using the pixel math method of converting to mono/greyscale... :(

Robert
you'll find the updated de-bayer script posted in this thread
http://pixinsight.com/forum/index.php?topic=1731.15
« Last Edit: 2010 October 24 21:59:04 by zerro1 »

Offline Cleon_Wells

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Re: Noob with a problem
« Reply #24 on: 2010 October 25 13:11:33 »
Randall, you should be using BatchDebayer v1.1.0.
Cleon
Cleon - GSO 10"RC/Canon T1i-Hap Mod, 100mmF6/2Ucam/MG, EQG/EQmod