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BlockHead
About
- Username
- BlockHead
- Joined
- Visits
- 257
- Last Active
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- Member, Administrator
Comments
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Yes... you might consider using MaskedStretch and HistogramTransformation instead of Arcsin..I think you found your stars are somewhat less objectionable. It would be a good experiment. In the latest video I posted on a data set I am processing in H…
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I think you have the right idea...but I would state it differently. -Only darks are required to make a Master Dark. (They are just combined in ImageIntegration) -If you are attempting to scale a MasterDark in order to calibrate (light) data taken at…
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Correct... When you are using the internet- you are using APASS9 (that is what is on the server). I showed that APASS9 has coverage for M101 and M51. You can verify this for your self by just using GenerateCatalogStars as I showed. This is why you a…
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Juan, You didn't happen to use ArcSinhsstretch did you?That can certainly exaggerate the effect. -the Blockhead
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Hi John, Of course, the first place I would go is to my videos on he subject!Have you had a chance to review them?Your basic outline is correct. Please see the videos here: https://www.adamblockstudios.com/categories/ColorCalib -the Blockhead
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HI Colin: Those "part" files are indicative of an interruption when you were downloading the catalogs. I do not think have have success yet. When you have downloaded and enabled the catalogs- you can tell you are using them because it will say so …
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ouch
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HI Wade, Yeah, it was a page available to everyone (since I posted on YT)...but that breaks the download thing.So... I made it available to all PixInsight members... and now the download should work.Please check.Thanks, -the Blockhead
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Hi Juan, Unfortunately this kind of issue has a number of causes.You are correct that differences between color channels will show up in the halos (edges) of stars. However, this really tends to average out with a significant number of frames. Consi…
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Thanks Alan.-the Blockhead
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HI Alan, Can you please check minute 6:50 in the first deconvolution video? I apply Histogram transformation there.Is this what you mean? -the Blockhead
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I have one more thought...that leads to many more thoughts.... Could you do me a favor and review this video?I think it speaks to my way of thinking better than I can express by typing it out... -The Blockhead
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No. This is a critique of PixInisght. Not all evaluations or convergent tweaks are necessarily possible.I will never blindly offer advice just because it is available or part of a particular software program. That being said, the parametric solution…
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I think I recall hearing of this issue a while ago.... You might want to look up the threads on this to see Juan's opinion... am not certain there is a desire to "fix" this.-the Blockhead
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I demonstrated that there exist algorithms that are insensitive or perhaps better optimized for taking the average PSF as measured from the image. The PI algorithm is not one of them. Yes, tweaking is fine- but I demonstrate the difference between g…
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Yes, PI uses relative paths for the projects, so you can move the project and its associated directory I believe.-the Blockhead
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Starnet is a used in some techniques...it is a pretty cool/powerful algorithm that many are using today.Of course there is a vast collection of stuff having nothing to do with Starnet.(Starnet is not used in FastTrack training of course.)-the Blockh…
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I wonder... have you investigated the use of a pedestal for your narrowband data?(Did you watch this section?) This might be a good avenue to pursue- assuming there isn't a real calibration error. -the Blockhead
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Hi Matt, Some examples are more involved than others. I have more examples, including nebulae, in Horizons.However... I would like to make an important point. Beyond calibration of the data (and color combining...etc, my teaching style is that there…
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I see you are getting some responses on the forum. Unfortunately the issue may be a local one (meaning you... )I hope you are able to get it worked out (or find another machine on which you can work.-the Blockhead