20th March 2020 - APP 1.078 has been released !

2019 November: Complete LRGB Tutorial of NGC292, The Small Magellanic Cloud by Christian Sasse, Astronomer in Charge of

2019 September: Astro Pixel Processor and celebrate a new Partnership!

BPM creation  


Hydrogen Atom Customer
Joined: 3 months ago
Posts: 1
December 30, 2019 01:14  

Hi all,

I downloaded the latest version of APP (MacOS) and watched several videos.  I loaded the flats/ darks (DNG, 10-15 each) and hit the calibrate tab #2. I checked the bad pixel map box in the left hand pane, but don't see the "calibrate" button at the bottom in my version and when I clicked the new tabs in the bottom (create Masters ......reassign Masters...etc.,) I am getting an error message. Any pointers would be appreciated.

Quasar Admin
Joined: 3 years ago
Posts: 2364
January 13, 2020 11:52  

Hi Gopal @gopalk,

I understand that somehow APP crashes on your DNGs when creating a BPM.

Perhaps you can share those DNGs files with me so I can check and solve what is going on?

You can upload them here:

username and password: appuser


What happens if you create a MasterFlat and MasterDark, without creating a BPM?

And what happens if you create a BPM from this MasterFlat and MasterDark?


Kind regards,


Main developer of Astro Pixel Processor and owner of Aries Productions