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New Tutorial: ATrousWaveletTransfrom and HDRWaveletTransform in PixInsight
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Topic: New Tutorial: ATrousWaveletTransfrom and HDRWaveletTransform in PixInsight (Read 7628 times)
Juan Conejero
PTeam Member
PixInsight Jedi Grand Master
Posts: 7111
New Tutorial: ATrousWaveletTransfrom and HDRWaveletTransform in PixInsight
«
on:
2007 November 27 15:15:27 »
Hello everybody,
A new processing example is now available:
http://pixinsight.com/examples/wavelets/NGC7000/en.html
I have used three original raw images acquired by Thomas W. Earle, who has kindly given me permission to use them. I want to express my gratitude for his great support and help.
This document is a step-by-step example focused on the practical usage of two important processing tools in PixInsight: ATrousWaveletTransfrom and HDRWaveletTransform. In addition, advanced topics related to image integration and robust evaluation of the signal-to-noise ratio are covered through scripts written in the JavaScript language.
I hope this work will be useful. Comments and criticisms are always welcome.
Enjoy it!
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Juan Conejero
PixInsight Development Team
http://pixinsight.com/
twade
PTeam Member
PixInsight Old Hand
Posts: 445
New Tutorial: ATrousWaveletTransfrom and HDRWaveletTransform in PixInsight
«
Reply #1 on:
2007 November 27 22:41:06 »
Juan,
As usual, another awesome tutorial.
Your excellent tutorials make an incredibly powerful software package even more powerful.
Wade
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OriolLehmkuhl
PixInsight Addict
Posts: 177
New Tutorial: ATrousWaveletTransfrom and HDRWaveletTransform in PixInsight
«
Reply #2 on:
2007 November 28 14:56:11 »
Hi Juan,
Great tutorial, in just a few weeks you have chaged our prespective of astronomical image processing (with this tutorial and the one of deconvolution). We are waiting new ideas from you :wink:
Regards,
Oriol and Ivette
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OriolLehmkuhl
PixInsight Addict
Posts: 177
New Tutorial: ATrousWaveletTransfrom and HDRWaveletTransform in PixInsight
«
Reply #3 on:
2007 December 15 02:41:02 »
Hi Juan,
We have been testing this technique with our 'poor' data. Our conclusion is that for our data (we do not have observatory so typically the frames are undersampled :? ) it is a better method to refine the detalis without having problems with the noise. It is really impressive the quanty of details that appear after the wavelet improvement
Regards,
Oriol & Ivette
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Juan Conejero
PTeam Member
PixInsight Jedi Grand Master
Posts: 7111
New Tutorial: ATrousWaveletTransfrom and HDRWaveletTransform in PixInsight
«
Reply #4 on:
2007 December 15 11:10:54 »
Hi Oriol
I completely agree. ATrousWaveletTransform is a really powerful tool for detail enhancement. Deconvolution requires more signal to achieve optimum results.
With the second tutorial, I wanted to demonstrate how well ATWT can work, even with limited SNR data.
Glad to know it also works well for you.
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Juan Conejero
PixInsight Development Team
http://pixinsight.com/
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New Tutorial: ATrousWaveletTransfrom and HDRWaveletTransform in PixInsight