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BlockHead
About
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- BlockHead
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Comments
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Jeff, The longer exposure-bloating thing is a non-starter. The "bloat" in terms of seeing occurs in just a few seconds due to the seeing. A longer exposure of *well guided* images should not increase the FWHM significantly (assuming seeing is consis…
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Hi Jeff, 1. NB stuff will probably have to wait. It isn't really in my wheelhouse at the moment. However, I do spell out a technique a number of times in my tutorials that is good for star replacement... and *no one* does it. Perhaps there is a draw…
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Hi Brian, Hmm... let me set aside the OSC part of your issue above... Concerning a "normal" RGB image created from mono R,G,B data- large variations in seeing can certainly cause an issue like you describe. I do not think deconvolution of Luminance …
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Hi Alan, I think the idea behind using the regularization is that you mitigate the need to use a mask at all. A conservative mask probably wouldn't hurt anything. -the Blockhead
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Hi Alan, Yes, you are correct concerning masks. You clone bodies... not clothing. lolYou will need to re-apply a mask to your cloned image. 1. Stars may be overwhelming...but this is likely more of a processing issue (and perhaps poor seeing thing).…
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Other than using Defect Map (which would be similar to the result you get in CCDStack)... I do not have have a clever method at the moment.-the Blockhead
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The high pass filter enhancement (typically with Overlay blending mode) is applied to stretched images- not linear ones. So you would not be saving a FIT file- but rather a TIF file. That being said, you can use the blending modes of Photoshop withi…
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Carl, You can do everything that you need to in PI and relatively simply. 1. Use Cosmetic Correction as the hot pixel filter. (Automatic is fine). You can make an image container for your data and apply the CC process to it. (I explain both the usag…
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Wade, My intent was to show Fabian's technique- but ultimately its application is a skill to master. No one had produced (or reproduced) the steps he demonstrated in his talks. This is what I did in the video- and showed the results to the best of m…
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Yes...I need to do Image Integration first. This has been a big project!-the Blockhead
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Better flats. This generally is not a processing problem (assuming the images are calibrated properly.)At the donuts exactly the same in all calibrated images, or are there just some images that have them?The kind of processing you do to make them g…
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I do not think anything is wrong. When a plate solution is performed you will never come up with exactly the same focal length. This is a warning that PI isn't going to "pick" one of them to write to the FITs header of the combined image. That is OK…
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Dwight, Be certain to include a screen capture. That will very likely generate some answers quickly.You will see I did submit a question regarding your issues...but no easy answers. -adam
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Wait...these are not columns... aren't these just single pixels?How in the world did you make this list initially??The easiest way I know is to write a tiny Python script/code that inputs the text file and outputsputpixel statements in Pixel Math. T…
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Dwight, This is really not normal behavior. I haven't seen this (nor have I seen reports of it).Would you be interested in a shared screen session? (Do you have a google account?) -adam
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Hi Dwight, I did not see your message on the PI forum. I will post something for you... But just to be certain I know what you are doing- can you please tell me the time of my video lesson you are encountering the problem? You you "create a view" …
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Hi Terry, Can you post your values?(Would it be possible to simply make it once using Pixel math? Once you have the image... you wouldn't need to do it again for a while).-the Blockhead
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Hi Dwight, I am not certain how to reproduce this error. I looked on the PI Forum... and this is a common problem when the version of PI has not be updated to the latest and greatest thing. If you have the latest version with all updates- then I th…
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Hi Alan, I do not think you are doing anything wrong. I agree with your observation and I think that the algorithm for transposing RGB->Lab in PI (at least in this tool) may be different than in Photoshop. I really do not know enough to say more.…
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I will leave this here for others to find...The Download access is only available to existing members (it wouldn't make sense to get this and not purchase access to something else). So after the initial purchase of say PixInsight Fundamentals- a me…