Colorful Aristarchus

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Colorful Aristarchus

Postby Starry Eyes » Sat Jan 04, 2014 5:14 pm

Here's a view of Aristarchus. I have been an AA & ATMer for 56+ years and now Astrophotography has given a new lease on life as to what we can see. StarTools has been a big part of this. :thumbsup: Check it out!

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Re: Colorful Aristarchus

Postby admin » Sat Jan 04, 2014 11:06 pm

Starry Eyes wrote:Here's a view of Aristarchus. I have been an AA & ATMer for 56+ years and now Astrophotography has given a new lease on life as to what we can see. StarTools has been a big part of this. :thumbsup: Check it out!

Image


Tack sharp! Does the color signify any type of mineral richness in that area?
Did you use Decon? In that case, did you set the 'Image Type' to Lunar/Planetary? I'm saying this because I see some clipping in the highlights and possibly shadows. Using the 'Image Type' option can prevent this.
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Re: Colorful Aristarchus

Postby Starry Eyes » Sun Jan 05, 2014 4:26 am

Can't get anything pass you! I used the deconvolution within registack. Didn't think to use it in ST because?...... I guess it isn't stretched when I start it :?: in ST is it?
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Re: Colorful Aristarchus

Postby admin » Sun Jan 05, 2014 10:46 pm

Didn't think to use it in ST because?...... I guess it isn't stretched when I start it :?: in ST is it?

What do you use for acquisition?
If the source delivers the data stretched, StarTools can try to reverse the stretch. After that, the data is more or less linear so you can apply deconvolution in StarTools, rather than in Registax.
Happy to have a look at the data!
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Re: Colorful Aristarchus

Postby Starry Eyes » Tue Jan 07, 2014 5:37 am

On it's way!
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Re: Colorful Aristarchus

Postby admin » Wed Jan 08, 2014 2:44 am

Starry Eyes wrote:On it's way!

Thanks for the data!

I wasn't able to extract materially more as the data seems to have been modified already.
Having the virgin data as it came out Registax (no enhancements, etc.) would be beneficial!
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Re: Colorful Aristarchus

Postby Starry Eyes » Wed Jan 08, 2014 5:28 pm

Done!
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Re: Colorful Aristarchus

Postby admin » Wed Jan 08, 2014 11:26 pm

Starry Eyes wrote:Done!

Here's what I came up with in StarTools;
ARISTARCHUS ROI 2.jpg
ARISTARCHUS ROI 2.jpg (57.54 KiB) Viewed 5645 times

A slightly better preservation of the highlights IMO.

log;

File loaded (Attempt reverse stretch, engage Tracking)
--- Bin
Parameter [Scale] set to [(scale/noise reduction 80.01%)/(156.21%)/(+0.64 bits)]
--- HDR
Equalize preset
Parameter [Dark/Bright Response] set to [7.06]
Parameter [Detail Size Range] set to [260 pixels]
--- Deconvolution
Parameter [Image Type] set to [Lunar/Planetary]
Parameter [Radius] set to [2.3 pixels]
Parameter [Iterations] set to [11]
Parameter [Regularization] set to [0.00 (noisier, extra detail)]
--- Wavelet Sharpen
Parameter [Intelligent Enhance] set to [No]
Parameter [Amount] set to [683 %]
Parameter [Small Detail Bias] set to [91 %]
--- Color
Default parameters.
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Re: Colorful Aristarchus

Postby Starry Eyes » Thu Jan 09, 2014 8:21 pm

Thanks for taking the time to look at this and detailing the work flow so well. :bow-yellow: Now I see what some of those sliders can do. I definitely see the improvement in the highlight issue.
I was able to replicate your results on the first go! Question. What is the theory behind binning @ 80.1% do for the process?

As an experiment I may try to use the wavelets in Registack without stretching the dynamic range unduly to see what that can do.
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Re: Colorful Aristarchus

Postby admin » Sat Jan 11, 2014 10:58 pm

Starry Eyes wrote:Question. What is the theory behind binning @ 80.1% do for the process?

I just wanted to match the resolution up on Astrobin (which seems smaller for some reason). :)
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