Debayering FITS with PIPP Not Working in Version 4

[poolemarkw]

Hello Everyone,

Previously in version 3.2 I would save my stacks as 16-bit FITS files and then debayer using PIPP. I just tried to debayer a FITS file created in version 4 and PIPP is chopping off the rightmost 25% of the frame and sticking it on the left side of the frame. Did something change?

Thanks,

Mark

[admin]

Hi Mark,

a bit confused, since if you are using live stacking then the saved stacks are colour already and do not need debayering. Saved RAW frames obviously do need debayering. There is a change to FITS files in 4.0 - the bayer pattern saved into the file headers is now switchable between 'normal' and 'inverted' to deal with the fact that processing applications cannot actually agree about what the correct pattern is :

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Anyway, even that should not get the sort of output you describe with the layout of the image messed up.

Please feel free to post a bad and a good FITS file if you are still stuck so I can investigate further.

cheers,

Robin

[poolemarkw]

Thanks Robin. I'll change my 4.0 setting to the "inverted" option that you circled below and see if it works the next time.

Here's my process: When I'm ready to do a "Save" of the stack I'm using "Save as 16 Bit Stack" and this creates the .fits file. It is always in black/white. I then use PIPP to debayer it using RGGB and create a resulting output .tif file that I post-process using PhotoShop.

1) Is there some setting that will create debayered .fits files rather than black/white?
2) Is there some other recommended method to go from .fits to .tif so I can edit in PhotoShop?

Thanks!

Mark

[admin]

Hi Mark,

unless you have alignment turned off in live stacking (which would be odd, since that's mostly what live stacking is for), then the FITS that you get by doign 'Save as 16 bit stack' should be a 3 channel (R,G,B) full colour FITS file. Some fits viewers do not deal with this as you might expect - for instance FITSLiberator can show each of the 3 channels as a monochrome image, but you cannot view the full colour in FITSLiberator.

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PIPP and GIMP and other software do understand the 3 channel FITS format for colour images. I suspect that you are actually using PIPP to convert this 3 colour format to TIFF, which will work fine, but isn't really anything to do with debayering.

Anyway, not sure that any of that is relevant to your original problem which was to do with the image being messed up...

cheers,

Robin