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BlockHead
About
- Username
- BlockHead
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Comments
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Hi Anders, Thanks for the offer. At the moment I am playing catch up. I will be completing the NB example soon..and hopefully follow-up with more. These are Horizons type things. -the Blockhead
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Hi Anthony, The exposures that are taken for each measurement are only 30 seconds or so in length. Any transient thing (satellite, airplane, lights from vehicle at the observatory) might "contaminate" the measurement at that sky position. -the Blo…
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Personally I do not see a big issue here...but it is a matter of taste.If you look at the recent image I created with NGC 6727, I had to handle this kind of thing: https://www.adamblockphotos.com/ngc-6726.html At some point in processing you have a…
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Hi Geoff, A couple of things. 1. Please include Hartmut Bornnemann's repository in your PixInsight Updates section. This will make certain you get any updates he does. 2. Blending functions are now a part of Pixel Math. So, in this particular case …
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I have started the Squid NB example in Horizons. Haven't gotten very far. With the new version of PI just released...I have gotten bogged down in this! -the Blockhead
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I guess I am wrong about LPS! I am very surprised!
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oh...and I do think LPS will certainly also wreak some havoc with MD. It might still work...but probably not be optimal... depands on how many columns are affect I suspect.
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If the distortions are small, likely it doesn't matter much. But the point is that distortion correction is another "warping" term that results in an interpolation of values that MD does not account for. It only models the uniform interpolation of t…
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Nihal, 1. Yes this is expected. A masked stretch star is supposed to look like this. 2. I have several videos demonstrating!! I do some work on this in the latest workflow of NGC 3486 .In addition, I even have a section on in in Horizons! https://ww…
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Hi Juan, I have not done this experiment...so I do not know. The paper that I cited clearly states the algorithm is intended to work on the integrated image. This is why I include this information, the paper author is the ultimate authority. For a…
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Indeed, that is what the word on the street is... https://pixinsight.com/forum/index.php?threads/pi-doesnt-read-the-correct-focal-length-from-the-fits-header.16259/page-3#post-105753 (last comment)
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I think neither really. PCC is used for color calibration of broadband images. It doesn't make much sense to "calibrate" narrowband data with arbitrary bandpasses and throughputs. Instead you choose the channels and relative signal strengths for ea…
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Yes, Image Solver will put a correct astrometric solution in the header- this is why it works.It is the astrometric solution which is a NON solution that the ASIAIR is putting in the header. This is absolutely unforgivable. The company should be tak…
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You need to give me access to the file (share with anyone that has the link).Typically when people have this problem it is because their acquisition software is inserting garbage information in to the header. You should try to ignore the metadata op…
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Thanks for the update.I can always be reached at ngc1535 at caelumobservatory.com. I will again let web support know that this is still an issue. Could you please indicate your operating system and browser. Thanks,-the Blockhead
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Have you tried to image without the Filter?LP filters with OSC cameras can be problematic.-the Blockhead
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I have demonstrated StarXterminator in several videos. I think the most recent one is the processing of NGC 3614 (Horizons). I will also be using it for many other upcoming things. -the Blockhead
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You cannot touch an image before using MUREDenoise. It is used immediately after integration. You are modeling the expected noise in the image... so DBE changes this (and hence it does not work). I am pretty sure I say this about MUREDenoise. Perhap…
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Ah... English is a little better. It is possible for a person to download the video and run it through software do this is. Since I allow the download option...I figure this is on the customer side. -the Blockhead
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I do think working and combining in linear is probably best initially.Then you create a color image. Once you have this- you can always extract the luminance (lightness) from it- and then recombine after you have made an adjustment. I do not think y…