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BlockHead
About
- Username
- BlockHead
- Joined
- Visits
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Comments
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Did you Drizzle the OSC 1x1?I am almost done with the OSC comet tutorial. This is has been hard work because I have created a couple of new methods for doing it. -the Blockhead
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I am working on your video right now.-the Blockhead
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Hi Hank, This sounds like you do not have much color information in your RGB. (Or that your Luminance is too bright.)I go into great detail on this... 0.8 is the magic number you absolutely cannot be above. If you want, you can make the two images …
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You should be cHUFFed about this result.HAHAGreat job! -the Blockhead
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I think we are not on the same wavelength. In this video:https://www.adamblockstudios.com/articles/rosette-nebula-final-adjustment I do the following:1. Adjust a stretched version of the RGB star image at 10:45.2. Then I remove the stars from this …
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You need to make certain both images are non-linear (permanently stretched) using (typically) Histogram Transformation. -the Blockhead
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HI Melvin, As you hopefully saw from my note...I will eventually cover this.I am still not convinced I will be able to say more interesting than the developers (who have taken the position of being an authority on the explanations). But there certai…
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Hi Bruce, Can you give an example of unscreened RGB stars that you have screened into a starless NB image? (this is what I did in the video.) I guess my question is... what are the issues/artifacts you see when you use the screen blending? I have no…
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I am working on this. I just acquired some OSC data from a kind individual.So...let me work on this...-the Blockhead
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Sounds like you are giving it a good try.You might also want to consider the MLT/MMT methods I use as well. They can be good at blending to the background. -the Blockhead
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Yeah, the consequence of having the binned data is going to give you a headache.The only reason to use unregistered (comet-only) data is to avoid interpolating the images. But in your case- because your original data is binned you have already relin…
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HI Kevin, Yeah..I understand. I am going to be reorganizing this year. It isn't the best..but one thing you can do is press the little "heart" you find on the top right of a page that has a video.This will be remembered and this is an indication you…
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@Philip Misiowiec It just so happens... Telescope Live gave me an assignment to process some of their data ..and it was an LRGB set. The good news is... the methods work fine in this situation.I do think the luminance helped..but mostly because the…
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N I C E ! ! Thanks David!-the Blockhead
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Thank you for that. Indeed... John was the best source in this case.Thanks for letting everyone know!-the Blockhead
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This is probably best address to John Murphy for a good answer.... -the Blockhead
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I don't have this. This is an advanced topic. Again you need to calculate the gain and compensate for differences in plate scale to maintain total flux in order to give the data the proper weights. The above is the real answer. Beyond that you would…
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You are right...I never did. However, once you have extracted the stars- you can basically resample 50% (back to original) at any time. It did not slow me down to keep it large- since we are basically just working with a single integrated color imag…
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The difference with upscaling may not be critical. Which video are you watching?Once you have removed the stars... you can go back down at any time.-the Blockhead
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It is one method our of many. So is it a best way? No. I think that is a special case- and mostly for demonstration of PixInsight capabilities. Many of the things I post in Horizons are "experimental"... they are not all in some way edifices of rigo…