PixInsight Forum (historical)

PixInsight => General => Topic started by: Cosmic_Christopher on 2019 December 14 17:40:06

Title: New to Pixinsight and having an issue with Image Integration
Post by: Cosmic_Christopher on 2019 December 14 17:40:06

I am following Astro Dude's youtube tutorial online on calibrating lights/darks/bias/flats. I am trying to do an Image Integration on my .fits bias frames and I'm getting an Error. Here is what my Process Console is showing me:

E:/Chris/Pictures/FITS Files/Bias Library/B_2019-11-28_07-52-27_Bin1x1_0.000032s__25C.fit
*** Error: PCL Legacy FITS Format Support: Unable to open FITS file: E:/Chris/Pictures/FITS Files/Bias Library/B_2019-11-28_07-52-27_Bin1x1_0.000032s__25C.fit
CFITSIO error message stack:
01 : ffopen could not interpret primary array header of file:
02 : E:\Chris\Pictures\FITS Files\Bias Library\B_2019-11-28_07-52-27_Bin1x1_0.000032s
03 : __25C.fit


Integration of 109 images:
Pixel combination .................. Average
Output normalization ............... None
Weighting mode ..................... Don't care
Scale estimator .................... Percentage bend midvariance
Range rejection .................... range_low=0.000000
Pixel rejection .................... Winsorized sigma clipping
Rejection normalization ............ None
Rejection clippings ................ low=yes high=yes
Rejection parameters ............... sigma_low=3.000 sigma_high=3.000 cutoff=5.000

* Available physical memory: 9.833 GiB
* Allocated pixel buffer: 3520 rows, 6.654 GiB
* Using 95 concurrent pixel stack(s), 0.720 GiB

Integrating pixel rows:     0 ->  3519:   0%
*** Error: FITSInstance::ReadSamples(): Illegal request on a closed stream.
<* failed *>



**Note: I am trying to integrate 109 bias frames at the same time.

Title: Re: New to Pixinsight and having an issue with Image Integration
Post by: pfile on 2019 December 14 18:15:17

can you check the file size of that fits file? usually when this happens it is because of a corrupt file...

rob

Title: Re: New to Pixinsight and having an issue with Image Integration
Post by: Cosmic_Christopher on 2019 December 15 09:03:09

Thank you. I will check the files when I get home later tonight.

Title: Re: New to Pixinsight and having an issue with Image Integration
Post by: Cosmic_Christopher on 2019 December 15 19:29:48

Quote from: pfile on 2019 December 14 18:15:17

can you check the file size of that fits file? usually when this happens it is because of a corrupt file...

rob

You're a genius. You were right. I had like 5 frames that read 0 bytes in the batch. Worked perfectly!

Title: Re: New to Pixinsight and having an issue with Image Integration
Post by: pfile on 2019 December 15 23:05:27

well i own no about that... i've just seen lots of different stuff over the years.

glad to hear it's working now

rob

Title: Re: New to Pixinsight and having an issue with Image Integration
Post by: Cosmic_Christopher on 2019 December 16 18:00:51

I have another issue now that I am further into the process. I'm trying to create a mask by using by going to IMAGE>EXTRACT>LIGHTNESS but all the options are greyed out in the menu. This is a monochrome picture I'm working with, so I'm not sure if that matters. Any thoughts?

Title: Re: New to Pixinsight and having an issue with Image Integration
Post by: pfile on 2019 December 16 18:08:39

it does matter, because a monochrome image does not have any CIE components (which are attributes of RGB images) - there's nothing to extract.

in this case, the monochrome image itself is its own lightness. if you want to mask your image with itself, just drag the name tab to the PI workspace and a clone of the image will be created. you can then drag the clone's name tab to the space below the name tab of the target image and the clone will be set as the mask.

rob

Title: Re: New to Pixinsight and having an issue with Image Integration
Post by: Cosmic_Christopher on 2019 December 16 18:26:21

Man.....you're good. I should pay to keep you on retainer. Thanks again