Author Topic: FITS header not propagating through drizzle integration  (Read 514 times)

Offline niccoc1603

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FITS header not propagating through drizzle integration
« on: 2019 September 06 03:25:25 »
I have noticed FITS header is not propagating through Drizzle Integration process, any way I can apply the original FITS header to the Drizzle Image?
The optimal would be the process to propagate the header and update the appropriate fields according to the drizzle scale

Offline pfile

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Re: FITS header not propagating through drizzle integration
« Reply #1 on: 2019 September 06 13:41:10 »
you can - if you open the non-drizzle integration and then open the FITS header tool (File  > FITS Header) and make sure the original image is selected from the dropdown menu at the top, you can then drag the triangle to the Drizzle integration image and it should copy everything over (actually replaces all the FITS header data in the Drizzle image with the non drizzle image's FITS data). it may then make sense to re-solve the drizzle image - i think this will update the WCS with the new pixel scale (though there might be other FITS keywords which describe the image scale that you would have to fix by hand.)

rob

Offline Juan Conejero

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Re: FITS header not propagating through drizzle integration
« Reply #2 on: 2019 September 08 00:28:19 »
This is actually a bug. It is now fixed in version 1.8.7. All relevant headers are now propagated throughout the entire preprocessing pipeline, including drizzle, with the correct image scale parameters (drizzle updates pixel size metadata to be coherent with the applied drizzle scale).

Version 1.8.7, with important new features, is planned for release during this month.
Juan Conejero
PixInsight Development Team
http://pixinsight.com/

Offline niccoc1603

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Re: FITS header not propagating through drizzle integration
« Reply #3 on: 2019 September 08 00:35:03 »
Awesome, looking forward to it