Author Topic: ImageCalibration “incompatible geometry”  (Read 1589 times)

Offline tristarcapt

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ImageCalibration “incompatible geometry”
« on: 2018 December 29 18:06:59 »
Decided to add to my dark library and create some more Darks. I’m now getting an “incompatible geometry” error when trying to calibrate with my previously created SuperBIAS. Will I have to go back and recreate new master and superbias’s with the latest update??

Offline pfile

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Re: ImageCalibration “incompatible geometry”
« Reply #1 on: 2018 December 29 18:13:28 »
are these DSLR files?

rob

Offline tristarcapt

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Re: ImageCalibration “incompatible geometry”
« Reply #2 on: 2018 December 29 18:15:04 »
Yes, sorry

Offline pfile

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Re: ImageCalibration “incompatible geometry”
« Reply #3 on: 2018 December 29 18:33:50 »
you will probably have to re-do them - older versions of PixInsight used DCRAW to decode DSLR files; the latest version uses libRaw. since both libraries (apparently independently) reverse engineered the CR2/NEF/etc formats, the dimensions of the decoded files are different. the problem is that most sensors have extra columns and rows which are not exposed to light and so don't have any image data; some software cuts these off and some does not. this is what leads to the difference in geometry.

rob

Offline tristarcapt

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Re: ImageCalibration “incompatible geometry”
« Reply #4 on: 2018 December 29 18:40:44 »
Ok, thx rob. Appreciate the quick response!

Offline tristarcapt

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Re: ImageCalibration “incompatible geometry”
« Reply #5 on: 2018 December 30 10:57:00 »
Just a follow up:  as you predicted, redoing my previous masterbias/superbias with the new libraw solved the geometry error I was getting.  I was able to calibrate the new Darks with the new superbias with no issues.

Thx, Scott