Show Posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.


Messages - pfile

Pages: 1 [2] 3 4 ... 267
16
General / Re: White circular patch on the stars
« on: 2019 March 13 09:33:30 »
yes it tends to saturate the cores. what deconvolution is doing is concentrating the energy of the star more toward the center, since in essence it is trying to undo the blurring in in the image.

rob

17
General / Re: White circular patch on the stars
« on: 2019 March 12 10:23:12 »
you might try a local support image for Deconvolution. this problem is common around stars. or, maybe make your mask stronger so the stars are not affected as much by the deconvolution process.

rob

18
General / Re: "Pure RAW" or "Demosaiced RGB"?
« on: 2019 March 11 10:25:31 »
yes if you tick "Pure Raw" then you need to tick "CFA Images" as well. "CFA Images" is telling BPP that it needs to debayer after calibration.

CFA stands for Color Filter Array and is a synonym for Bayer Array.

rob

19
General / Re: Improving PI speed
« on: 2019 March 10 17:31:37 »
well the benchmark itself i think predates all the multithreading work that juan put into staralignment, so maybe the benchmark does not accurately reflect the mix of IO and computation that a pure staralignment run represents.

in this post, juan notes that for multithreaded i/o workloads windows seems to beat osx and linux, so i guess that is consistent with your findings:

https://pixinsight.com/forum/index.php?topic=13354.msg80899#msg80899

rob

20
General / Re: StarAlignement, before or after DBE ?
« on: 2019 March 09 09:40:26 »
just FYI DBE does not work with ImageContainer - only ABE does.

while what adam says is true if you have severe light pollution gradients what you are proposing could work, as the gradient will be clearly visible in each sub. however since you are going to apply ABE with the same parameters to each image, depending on the gradients, those parameters may not be applicable to each subframe, and you may end up under- or over- subtracting the gradient. i'd say it's more of an advanced, desperate technique and it's better to first try what adam proposes.

rob

21
you should upload the files (the masters and a light) so someone can take a look / reproduce the problem.

rob

22
column 0 = R, column 1 = G, column 2 = B

rob

23
it used to be that dell shipped some utilities preinstalled that utilized Qt, and the DLLs that were pre-existing on the machine conflicted with the PI Qt DLLs, leading to some serious problems.

i don't know if this is the case anymore on windows 10.

i think juan uses a plain-vanilla W10 environment straight from microsoft, rather than any OEM version of the OS. so that's probably the best way to ensure compatibility.

rob

24
oh i see what you meant, well, it might work, but i'm not sure HDRComposition was designed for nonlinear images.

there are tools out there that can do HDR composites of stretched data. enfuse comes to mind.

rob

25
you should use HDRComposition on linear images, so don't stretch before running that. maybe do DBE and then HDRC and then start processing the HDR image.

rob

26
maybe try MaskedStretch for the initial stretch?

rob

27
General / Re: Introduced lines into debayered images.
« on: 2019 February 24 21:42:30 »
the image you posted *can't* be straight from the camera because the fits header indicates it was written by pixinsight...

anyway if indeed you had to alter some of the calibration images you may have cropped them on a non-bayer matrix boundary and that can definitely screw everything up.

rob

28
General / Re: How Does Everyone Store their Data Long-Term?
« on: 2019 February 23 14:59:45 »
i guess you could save process icons for each processed image in the project onto the PI desktop and then delete the images themselves, then save the project. in theory if you saved all the process icons for calibration/staralignment/integration too then you could replicate everything in PI without having to write anything down, as long as you saved all of your raw images from the camera...

rob

29
General / Re: No colour after a simple processing
« on: 2019 February 23 14:56:53 »
Debayer needs to be in there somewhere... did you do that?

rob

30
General / Re: Introduced lines into debayered images.
« on: 2019 February 22 22:06:32 »
well what i'm saying is that the file you posted seems to have been read into PI and then saved from PI, since the FITS header says:

 PROGRAM = 'PixInsight 01.08.06.1457' / Software that created this HDU           
 COMMENT PixInsight Class Library: PCL 02.01.11.0938                           
 COMMENT FITS module version 01.01.05.0433                                       

your capture software probably would not put those FITS keywords into the header.

something is funny with these images, i just don't know what. it's unusual to have those black borders all the way around straight out of the camera, and the lines seem to be there even before debayering...

rob

Pages: 1 [2] 3 4 ... 267