step pattern in int...
 
Share:
Notifications
Clear all

15th Feb 2024: Astro Pixel Processor 2.0.0-beta29 released - macOS native File Chooser, macOS CMD-Q fixed, read-only Fits on network fixed and other bug fixes

7th December 2023:  added payment option Alipay to purchase Astro Pixel Processor from China, Hong Kong, Macau, Taiwan, Korea, Japan and other countries where Alipay is used.

 

step pattern in integrated immage

4 Posts
2 Users
0 Likes
808 Views
(@ofergol)
Red Giant
Joined: 4 years ago
Posts: 27
Topic starter  

In my integrated image of the horsehead nebula, I notice steps pattern on the right side (attached).

The integration included two sessions (60s and 120s).

A meridian flip was done during the 120s session.

I suspect the the pattern is somehow related to a problem in normalization.

Help with the issue will be much appreciated.

Thanks

Ofer

IC434 3

 


   
ReplyQuote
(@vincent-mod)
Universe Admin
Joined: 7 years ago
Posts: 5709
 

Mmm, I guess so, but the image doesn't look right either. It shouldn't be so dark nor over-saturated. Was this done to show the stepping? Could you describe what you do for calibration, your procedure, software used etc?


   
ReplyQuote
(@ofergol)
Red Giant
Joined: 4 years ago
Posts: 27
Topic starter  

Sorry. the image was processed to highlight the stepping.

now I see that the stepping happened when I rotated the image in APP.

I attach the non-processed image and the rotated one.

IC434 session 1 session 2 crop  90degCW 1.0x LZ3 NS St
IC434 session 1 session 2 crop St

 


   
ReplyQuote
(@vincent-mod)
Universe Admin
Joined: 7 years ago
Posts: 5709
 

Oh interesting, I'll ask Mabula if that would make sense, thanks for showing!


   
ReplyQuote
Share: