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PixInsight: Dynamic Background Extraction (An Introduction)

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This is (just) Part 1 of a set of videos that explain and demonstrate how to using PixInsight's Dynamic Background Extraction tool. If you like this... you will certainly like the others. This is taken from the Fundamentals collection (of my instructional videos at AdamBlockStudios.com)- but other advanced uses are demonstrated in PixInsight Horizons.

Опубликовано:

5 сен 2024

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Комментарии : 20

@muthunag89 3 года назад

Thank you for doing these videos. Unlike a lot of other tutorials, your explanation of what's actually happening in tbe backend is super helpful to understand the process and how to use them..

@Astro_Px 9 месяцев назад

Hi Adam, absolutely phenomenal material. Love that you take the time to explain the various parameters, that way you walk away with a better understanding as to why you get specific results and how to tweak these parameters for specific use cases. If I may, I thought you stated that was Part 1, and the video does end somewhat unexpectedly. I looked around in your video set and did not find a "part 2" or one that looked like the follow-up. Would you mind adding the link to the follow-up or state that there isn't one in case I misunderstood. Thank Adam!

@AdamBlock 9 месяцев назад

Indeed... you will find all of my videos on my site. I think with this video (I posted it long ago) I was trying to encourage people to see my style and expertise...and then PERSUADE THEM TO BECOME A MEMBER of my site. Apparently, still not good enough. lol :) AdamBlockStudios.com

@flyfisher8475 Год назад

Very helpful explanation and very clear.

@f.k.6151 Год назад

Great video, well done as always. Thanks you.

@Calzune 4 года назад

Thanks! More of these detailed explanations please!

@u2pilotjt 4 года назад

Very informative. Thank you!

@matthewbrown5208 Год назад

Great tutorial, thankyou

@AdamBlock Год назад

Thank you!

@robertovolpini9359 7 месяцев назад

Adam, your videos are impressive in their simplicity and clarity of presentation. Just a confirmation, so it is important that the samples are not taken where there are stars (or galaxies) because this would reduce the quantity of pixels analyzed. is that so? However, regarding tolerance, the value also depends on the "asymmetry" level of the image in terms of the flatness of the sky background, does this make sense? Clear skies e ciao Roberto

@AdamBlock 7 месяцев назад

In general yes. Including stars will add that light (those values) into the calculation for a sample. The tolerance controls how permissive this is... but stars have faint halos... so avoiding them is usually best. Regarding the gradient of the image-- no the amount of gradient (the degree of flatness of the image) does not influence your choice of tolerance. This is a sample-based parameter. The strength of the (local) gradient correction is controlled by the smoothing parameter. You should become a member of AdamBlockStudios... I have videos that demonstrate and *explain* in detail.

@robertovolpini9359 7 месяцев назад

@@AdamBlock hi Adam, I took a quick tour on Adam Block Studios website, very interesting site, but I have a question taken as example the Fundamental Path videos, I can see that there are a lot but also on your RU-vid channel there are a lot, ehrre is the difference? what kind of benefit we’ll have paiyng to join to the comminity? thanks in advance fir your explanation, see you soon 🙏😉

@AdamBlock 7 месяцев назад

@@robertovolpini9359 You think the YT channel is a lot? Then you have no idea how much I have on my site! It is easily 10 times more. The videos I produce here on YT are not as detailed or clever as what I explain an demonstrate on my site. These YT videos are supposed to make you think... "If he can explain/show this... what more is on his site? It is so helpful.... lol "

@robertovolpini9359 7 месяцев назад

@@AdamBlockthanks a lot for your explanation, I appreciated a lot. I will seriously consider the idea of becoming a member to acquire the necessary knowledge to do what I considered 80% of the work in astrophotography, namely post production, of course the acquisition is very important but it will remain empty without a careful process of processing the acquired images A warm hug and thanks for your powerful work, I wish you clear skies

@ralphbuoncristiani2941 2 года назад

A very compete explanation. Thank you, But, I still don’t fully comprehend what the software does with the information in applying to the total background. I get, establishing a background level but hen how does it apply to the rest of the image.

@ibnulhussaini3791 2 года назад

I'm sorry to bother you with all these questions so I'll try to keep this one short. How would you approach the DBE process when it comes to narrow fields of view of a big & bright nebula? The nebula encompasses the whole field of view & there is no visible background whatsoever. The only dark parts are the dust but I'm not sure if it's a good idea to be placing sample points on these areas

@AdamBlock 2 года назад

Great question.. you know I have an entire website of answers to questions like this right? (AdamBlockStudios.com) The quick answer to your question is that although the nebula may fill the field...there still exists a noise "floor" in some parts that you can say is not "useful" nebula information and put samples there. Also, symmetries can help too.

@ibnulhussaini3791 2 года назад

@@AdamBlock Yeah, I'm seriously considering signing up. Thanks anyway!