Author Topic: Loading FITS files into 1.8 RC4  (Read 2738 times)

Offline jcm

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Loading FITS files into 1.8 RC4
« on: 2013 March 20 04:36:00 »
Hi All,

I may be doing something silly as I am not an experienced user.
I use ImagesPlus to process my Canon RAW files.
When I load the complete image ( 16 bit-FIT or 32-bit Floating FIT) into 1.8 RC4 it produces 3
separate images, all 3 images carry the same name though 2 of them have 01 and 02 in their title. If I save the output from ImagesPlus as a TIF file this loads normally as a single image.

I cannot remember this happening using 1.7

John
10" RC astrograph , WO GT81  APO Refractor.
EQ8, Atik 460EX , Canon 1100d , GigE Flea3

Offline Juan Conejero

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Re: Loading FITS files into 1.8 RC4
« Reply #1 on: 2013 March 20 05:33:04 »
PixInsight and ImagesPlus store multichannel FITS images in different ways.

PixInsight stores a multichannel image as a data cube: a single image with three dimensions, where the Z axis represents the channel index.

ImagesPlus stores each channel of a multichannel image as a separate image in a FITS file, each one with its own HDU (header-data unit). Hence, when you open such a file in PixInsight you get just what has been stored in the file: three images in the case of an RGB color image.
Juan Conejero
PixInsight Development Team
http://pixinsight.com/

Offline jcm

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Re: Loading FITS files into 1.8 RC4
« Reply #2 on: 2013 March 20 06:04:04 »
Thanks for the quick reply.

Does that mean I can just recombine the channels or would I have to use a TIF file output
from ImagesPlus?

John
10" RC astrograph , WO GT81  APO Refractor.
EQ8, Atik 460EX , Canon 1100d , GigE Flea3