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Loss of Color in image saved by PI

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(@whixson)
Black Hole
Joined: 5 years ago
Posts: 164
Topic starter  

Hi! I’m having a strange problem with OSC images I debayer, stack,integrate, remove LP and color calibrate in APP, then load into PI for access to BlurXterminator. I want to bring back into APP for more sharpening and stretching as I prefer those tools. The image is linear FITS the whole time. However when I load back into APP the color appears to be gone. Even setting saturation at max. 

I did not have this problem with RGB images taken with a mono camera. Im wondering if it has to do with Bayer matrix or the particular FITS format I use when saving from PI. It has a lot of options for bit depth and signed/unsigned integer etc. Any ideas? 

Wayne

This topic was modified 4 months ago by Whixson

   
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(@vincent-mod)
Universe Admin
Joined: 6 years ago
Posts: 5701
 

Mmm, can you save at a 32-bit depth at least?


   
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(@mabula-admin)
Universe Admin
Joined: 6 years ago
Posts: 3875
 

@whixson, best will be to save it in 32bits floats since the data would still be linear. Maybe the BlurXterminator tool does something which affect the color info?

Do you want me to check the result that you load into APP?


   
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(@whixson)
Black Hole
Joined: 5 years ago
Posts: 164
Topic starter  

@mabula-admin thanks Mabula. Actually I tried saving in APP, opening in PI and immediately re-saving with no processing in PI and still have the problem. I’m not sure if I used 32 bit float? I’ll try again 


   
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(@dheyergmail-com)
White Dwarf
Joined: 2 years ago
Posts: 7
 

Did you ever figure this out? There "shouldn't" be but I wonder if this is related to the ROWORDER and the XISF format. There are some interesting debates/arguments about PixInsights handling of ROWORDER. I have some strange color behavior between APP and PI. If you are still trying to use BlurX I suggest using DBE in PixInsight then BlurX, then come back to APP. BlurX works best before color calibration. There is also a program now that works like BlurX called AstroSharp and you can run it at the end of image processing. Search Github for it.


   
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(@mabula-admin)
Universe Admin
Joined: 6 years ago
Posts: 3875
 

Hi @whixson, I tried myself, I opened a color FITS integration file created by APP in Pixinsight, saved as 32bits float and the image looked exactly the same as the original in APP when stretched in APP.If the image would look different, then by all means, it is a Pixinsight problem I would think?

Did you try? All okay now? I know that an older version of APP had a bug with 32 bits integer files, so I double checked that as well, saved as 32bits integer in Pixinsight and then loaded it into APP. The file again looked exactly the same in detail and color which it should.

Mabula


   
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(@mabula-admin)
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Joined: 6 years ago
Posts: 3875
 

Posted by: @dheyergmail-com

Did you ever figure this out? There "shouldn't" be but I wonder if this is related to the ROWORDER and the XISF format. There are some interesting debates/arguments about PixInsights handling of ROWORDER. I have some strange color behavior between APP and PI. If you are still trying to use BlurX I suggest using DBE in PixInsight then BlurX, then come back to APP. BlurX works best before color calibration. There is also a program now that works like BlurX called AstroSharp and you can run it at the end of image processing. Search Github for it.

@dheyergmail-com ROWORDER should never influence this problem. ROWORDER applied to raw images that still need to be demosaiced. The problem reported here deals with already demosaiced data 😉

 

 


   
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