Author Topic: Huge problem with Master Darks  (Read 2571 times)

Offline Corpze

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Huge problem with Master Darks
« on: 2014 December 20 02:53:34 »
Hi, i am am time after time getting an error when using the Batch Pre Processing script.

I am trying to process 10 Bias, 20 flats (only for luminance filter) and 20 darks. The lights are 7 of each RGB and 25 Luminance
When i run diagnostics, it tells me that 7 RGB is to little to run Windsorized Sigma, so i change that to Percentile and all is well so far.
The diagnostics also tells me that i don´t have any flats for my RGB, but is that really necessary for my dark calibration?

After these settings i run the script, it creates masters of Bias, Flats and even darks, but when the script is going to calibrate the light frames, is sais that it is searching for master dark with the right exposure length (200 sec) even though the preprocess window is saying 200 sec, the fits header is saying 200 sec. everywhere i check, it said that both the dark frames and the Master dark is 200sec, yet PixInsight can´t find it.

What is wrong? me? the script?

Offline jkmorse

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Re: Huge problem with Master Darks
« Reply #1 on: 2014 December 23 13:06:16 »
You may be experiencing some formatting issues or other problems that will be difficult to sort out within the batchpreprocessing script.  Try preprocessing each step manually to see where the problem lies.  If it is a format issue, here are some suggestions from one of my prior posts:

Fixing FITS Incompatibilities
If you experience these types of incompatibilities, try the following until you hit on a solution:

First
•   Open the Format Explorer (access under “View > Explorer Windows”)
•   Double click on “FITS”
•   Make sure the top two boxes are checked
       o   “Write scaling keywords . . .”
       o   “Signed Integer images . . .”

Second
•   Where possible, particularly in the Image Calibration tool for Lights, but also with ImageIntegration when creating Master Darks and Master Bias, add the following to the “input hints” line under “Format Hints”:
       o   lower-range 0 upper-range 65535

Third
•   If the above does not work, insert the following in the “input hints” line:
       o   Signed-is-physical

Stop using input hints AFTER you have successfully saved an image after applying a PI tool; i.e, do not use input hints in ImageIntegration after successfully calibrating Light images in PI with the ImageCalibration tool (after first PI application, images are saved in proper PI format (0,1) and no longer need input hints)

For an excellent explanation of what is happening to cause this problem, check out the following threads from Juan Conejero:

http://pixinsight.com/forum/index.php?topic=3118.msg21348
http://pixinsight.com/forum/index.php?topic=3474,msg23973
http://pixinsight.com/forum/index.php?topic=3800.msg26086

Hope that helps,

Jim
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Offline Corpze

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Re: Huge problem with Master Darks
« Reply #2 on: 2014 December 23 13:14:57 »
After almost seven hours, i solved my problem with adding bin2 darks... ::)