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BlockHead
About
- Username
- BlockHead
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Comments
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Thanks for the suggestion George.This is an area I am not an expert in- and do not have any data (of my own) to work with. I am hopeful that this is something I can do within this year. -the Blockhead
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This would certainly make a good tutorial. In fact- star halos are so varied in size, brightness, color and structure that an entire section of many examples would be required. So there isn't, in my opinion, a "best method" for getting rid of them. …
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Hi Michael, A funny thing- I did this video a while ago so... I I need to re-watch it to see what in the world I said! 1. With regards to making a Hot Pixel Map from a dark frame- I do not believe it matters too much whether it is a single dark or a…
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Hi Alan, I am not certain I understand. Can you give me an example?In the workflow, I think the processes in under the RGB icons are mainly used in LRGB Blending (RGB Manipulation) -the Blockhead
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Glad you got it worked out... seems like you got the same answer I gave on the PI Forum.-the Blockhead
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Hmmm... it seems like you are trying to save the file in the "root" Pixinsight directory perhaps in your Programs Files folder. Since this is your first project... your computer may have defaulted there. What location did you choose? Can you browse …
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Hmmm... I would say that Exponential Transform produces a family of transfer curves...but they are of a particular shape. You can't put a "bend" in them anywhere. Curves is fully generalized and flexible. So Exponential Transform is a subset of Curv…
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That video ended up being in Pixinsight Horizons: https://www.adamblockstudios.com/articles/HDRMT_04 It is a more complicated case and belongs squarely in the Horizons collection. I am trying to keep Fundamentals to live by its name- and Horizons i…
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Hi Petri, Yeah. That is a tough one. I haven't used a blooming camera in a very long time. All of the good solutions (and this really does apply to all software) are acquisition strategies combined with processing. So for example if you rotate your …
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I have added a small set of scripts here: https://www.adamblockstudios.com/articles/Script_Collection Thanks,-the Blockhead
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OK. I will need to do this a bit later (sorry... busy workday). Look for it later this evening perhaps.thanks,-the Blockhead
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Hi Qiang, I just tried the link and it worked for me.Could you try it again? His server might have been down.If there is still a problem, I will make it available from my web site. Thanks, -the Blockhead
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This is a GREAT question. I thought I knew the answer! I would have guessed that the process of reading a pixel would not change- the bit of the CCD camera that does the counting doesn't "know* about the size of the pixel. So binning would not affec…
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OK... so now I can finally talk about MURE Denoise...as I have completed the lesson on it. https://www.adamblockstudios.com/articles/MURE_Denoise Indeed, you cannot apply this algorithm to Drizzled data. Drizzling, by its very nature, modifies the…
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I did actually try to explain it for a talk I gave at Borrego Springs some years ago. However... I can't say I did it well (or correctly for that matter). One concept I am sure you have heard of is that you can approximate any single valued functio…
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Alan, That is a tough one. The explanation requires an understanding of Fourier Transforms. The best I can do is say that it is a mathematical kernal that interacts with data on different scales and frequencies of information. That last part is the …
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Hi Alan, I think with respect to the platform, this player is pretty much fixed. This is a product that is deployed across many websites and it is isn't possible to customize the player in this way (it would need to be a new player, for everyone). …
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Sorry Terry. I do not know the answer. -the Blockhead
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Sounds dangerous to me. Undersampled stars and hotpixels really do look similar. I guess it is something to experiment with. -The Blockhead
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HI Alan, Yes. In that case, instead of running BPP twice- you could run BPP once only calibrating and then running two corrections (one for each binning) with an image container. I think this might be a little faster since you can load all of your f…