The power of Deconvolution & Wavelets

[cybereye (Mario)]

Hi everyone!!

I just thought I'd post a before and after image of some lunar data I've been trying to massage. This will give you an idea of how much data is actually in an image and how it can be brought out.

For those that may not know the basis of deconvolution, the atmosphere acts like a filter that is placed in between us and the object we are imaging. Decon tries to determine the effect of the "filter" and back it out.

I've also done some mild Wavelet processing to this image as well just to try and bring out any more detail that might have been lurking in the image.

It's amazing what can be imaged and I hope people find this interesting/informative,

Cheers,
Mario

PS Both the Decon and Wavelets were performed in StarTools.

[lepton3 (Ivan)]

Wow, Mario, a really graphic illustration of the power. Half the small craters aren't even visible in the "before" image.

Have to say, this is the attraction of imaging the solar system for me -- you can get so much more out of the data with post processing than you get looking through the eyepiece.

Thanks for posting.

-Ivan

[Helo (Peter)]

Hi Mario, that's a great illustration of the power of the software. Are there any sources for tutorials for learning how to do that?

Thx

Peter

[mplanet62 (Michael)]

While complex and precise methods give superior results, quick tweak in some editor - like free GIMP may be quite useful too:

Don't overlook simple solutions, they may be useful...

[irwjager (Ivo)]

Originally Posted by Helo

Hi Mario, that's a great illustration of the power of the software. Are there any sources for tutorials for learning how to do that?

Thx

Peter

Originally Posted by mplanet62

While complex and precise methods give superior results, quick tweak in some editor - like free GIMP may be quite useful too:
Attachment 110925
Don't overlook simple solutions, they may be useful...

If you're just doing planetary (e.g. you don't need to do any stretching) deconvolution can be done in the GIMP as well with the right plug-in (G'MIC offers decon for example).

And Registax has some interesting Wavelet manipulation features that, though somewhat awkward, can actually mimic decon as well by chaining multiple wavelet operations of the same size.

Worth checking out if you have no budget!

[ChrisM]

Mario, that's a great comparison. How did you capture your original shot?

Chris