Astrophotography Image Processing

CCD vs Film? Lots of time vs no patience? Alright, this is your place to discuss all the astrophotography what's and what's not. You can discuss about techniques, accessories, cameras, whatever....just make sure you also post some nice photos here too!
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NGC 5139
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Astrophotography Image Processing

Post by NGC 5139 »

Hello,

I have a bit of trouble with using Registax 3 to process images. According to the web site, Registax 3's strength suppossedly lies in its ability to do wavelet processing. However, I dont seem to be able to make any sense of the graphs and settings :).

Could anyone please enlighten me on this? Thank you :)
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weixing
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Post by weixing »

Hi,
At every wavelet layer, there is a preview button. Click on the preview button, the software will display a enchance map. The enchance map will show you which pixels will be enchance when you change that setting. Just change the setting until you like what you see.

Have a nice day.
Yang Weixing
:mrgreen: "The universe is composed mainly of hydrogen and ignorance." :mrgreen:
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chrisyeo
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Post by chrisyeo »

Hi NGC5139,

Can we have a look at one of your raw frames?

I suspect that it's just that your stacked image does not contain enough detail or is out of focus.

What scope and mount are you using?

Cheers,
Chris
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NGC 5139
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Joined: Sun Nov 14, 2004 2:19 pm
Location: NGC 5139

Post by NGC 5139 »

The scope was a 8-inch SCT and the mount was a Vixen Sphinx mount. I seem to have some problem focusing when taking the image. Yes, I also agree fully that it lacks detail.

The camera used was a Nikon Coolpix 4500 on movie (.avi) mode. Would better results be achieved with a ToUcam? :)

Thank you :)
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river
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Post by river »

What is the dimension of each raw frame? Can you remember which EP was used to capture this movie?

I got something like your stack of 500 image, I believe my 320x240 frame size for movie is bit too small.

p/s: sorry that you miss the mars watch 05 due to some reason, hope to do mars watch with you again soon.
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NGC 5139
Posts: 82
Joined: Sun Nov 14, 2004 2:19 pm
Location: NGC 5139

Post by NGC 5139 »

I can't remember the exact dimensions of the movie when recorded, but it was about 320X240 when I opened it in Registax after converting it from .mov format to .avi format using Quicktime Pro.

Could it be due to the weather and high-altitude cloud that gave rise to the lack of detail? I think the focusing was not done well enough.

Hope that I won't get sore eyes on the eve of another big astronomy event and miss out on it again :).
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