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BlockHead
About
- Username
- BlockHead
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Comments
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Interesting. I never looked at the data in that way (I am surprised the Red channel is that smoothed/fuzzy).So... in my experience, I do not see a "reconstructive" method of "reasonable adjustment." It could be something exists..but I am not aware o…
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Hmm... that is a question for the PI forum. I am not familiar with issues with your OS...so I cannot advise- but I can tell you, you do need to get up to the latest version. There are many significant ones- and many like this that you simply will no…
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You need to remove your old version of PixInsight and reinstall the latest version. Make certain you log into your PixInsight account and download the new version first before touching your current version. Please see the screenshot (I attempted to …
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I haven't actually done my suggestion... but I was going with "in principle" thoughts. :)This would be a good suggestion for Harmut and his script... to specify a part (central) of the image. -the Blockhead
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To be honest, I had forgotten about it. But I don't like PSF generated answers at all- they include the wings of the stars (if not adjusted). The automation of the script is fine- but the PSF answer will be the same (please let me know if this is in…
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Hi Ed, 1. You would expect to see readnoise- whatever the expected level is for the sensor. (some of the values will even be negative..but representated as zeros unless you add a pedestal.)2. Yes, if it does not significantly differ from the read no…
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Hi Ed, Yeah, I guess I was going to wait for a nice comet.... lol. The best ones to process are those that are moving perpendicular (or askew) with respect to the tails of the comet. And the motion isn't too much or too little... tough critters! Sub…
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Regarding the red stars- they were really badly out of focus. This is the only "reasonable" (kinda) way I know. Star-Deemphasis would also work...but likely be more steps than necessary. Keep in mind we are fixing the color here... not detail (not l…
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Hi Patrick, The video is published here: https://www.adamblockstudios.com/articles/insert-rgb-stars-into-nb-image Thank you again for letting me use your image and example.-the Blockhead
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I will publish it likely tomorrow. (The raw recording is done... now there is "post processing" of the video... lol) As a sneak peek... what I did was the following:1. Applied the CorrectMagentaStars script. In my opinion... this does a majority of …
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HI Patrick, So... I went ahead and made a PixInsight Horizons lesson on this. I did not personally identify you, but obviously used your two images to do this thing. May I publish this as a tutorial? Thanks in advance for the consideration.-the Bloc…
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ngc1535@caelumobservatory.com
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Screen never creates darker pixels in the blended result.. You should provide the permanently stretched NB color image and the Linear RGB image that has stars. The RGB image should already be registered to the NB color image. Both files should be sa…
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Hi Patrick, I plan on adding some NB processing to Horizons soon.The method I think I would use I do cover...but no promises...I do not have your data... is one I show in many different forms. Screen blending will do the trick. Make a version of yo…
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No... a dark frame oversubtraction (due to a calibration issue) would not necessarily be fixed by adding a pedestal. First, please make certain the dark frames are actually viable/valid for your data. What is the value in your dark? What is the valu…
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It could also be a calibration error (and oversubtraction of the dark frame).Sorry, it is hard to say without screenshots and more information.Sincerely,-the Blockhead
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Hi Jeff, I definitely do not have any good advice on the color spaces and all of that. I just go with the default settings when generating TIFFs or JPEGS. My "technique" is to have an good monitor- but deliver an "average" image that looks reasonabl…
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Thanks!-the Blockhead
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Hi Darren, Well... I believe most people do. This is not an issue I hear being reported as a common issue.-the Blockhead
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Thank you!!!! Very much appreciated!-the Blockhead