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31 July 2020 - Comet Registration video tutorial using APP 1.083-beta1 released.

30 July 2020 - APP 1.083-beta1 has been released introducing Comet processing! This 1st beta has comet registration. The stable release will also include special comet integration modes.

9 July 2020 - New and updated video tutorial using APP 1.081: Complete LRGB Tutorial of NGC292, The Small Magellanic Cloud by Christian Sasse (iTelescope.net) and Mabula Haverkamp

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

1.081 Neutralize-BG  

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(@fendium)
Brown Dwarf Customer
Joined: 10 months ago
Posts: 8
July 9, 2020 19:52  

Version 1.081

I have created a couple of mosaic with last version 1.081, with neutralize-bg option selected in 5) normalize

The final result is good, but when i select again neutralize-BG in the view option panel on the right, the imaged becomes all white: by the istrogram seems that all pixel was pushed down to black, and the applied stretch turn all to white.

 

APP mosaic
APP mosaic nbg

The problemis is when using "remove light pollution" operation, APP perform an automatic neutralizeBG, so is not possible to go ahead with image processing.

APP mosaic remove pollution

 

This topic was modified 1 month ago 2 times by Paolo Manicardi

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(@fendium)
Brown Dwarf Customer
Joined: 10 months ago
Posts: 8
July 9, 2020 22:44  

I check disabling neutralizeBG in 5)normalize, and the result is ok

NeutralizeBg in view after mosaic composition is ok and i can go ahead with light pollution correction


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(@vincent-mod)
Quasar Admin
Joined: 3 years ago
Posts: 2128
July 10, 2020 11:06  

There is also a tooltip, when you hover over that option in tab 5, mentioning that you’d need to calibrate the background later on. What happens when you turn off a similar option on the right for the preview window? I think it might be a data issue in this case, preventing it from working normally.


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(@astroman2)
Hydrogen Atom Customer
Joined: 2 years ago
Posts: 2
July 13, 2020 10:30  

I have a similar issue in 1.082.  Integration proceeded normally and the view of the image was very good.  When I selected the tool, normalise background, the whole image went white in a very similar way and I could not correct the picture.  Image pixels were all scaled to 0.9999xxx or similar.


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(@astroman2)
Hydrogen Atom Customer
Joined: 2 years ago
Posts: 2
July 15, 2020 05:57  

Screenshot with example of "white out". Getting this issue regularly.

 

 

2020 07 15 (1)

 


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(@vincent-mod)
Quasar Admin
Joined: 3 years ago
Posts: 2128
July 17, 2020 21:11  

I will ask Mabula why this exactly happens, I think it must be data related otherwise many more would have it. I'll come back to it asap.


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(@ralph)
Red Giant Customer
Joined: 1 year ago
Posts: 75
July 19, 2020 20:39  

I've been having this white-out too, every now and then. When viewing in registered mode, stepping through the individual exposures after alignement, this happens for a few of the exposures, not for all.


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(@vincent-mod)
Quasar Admin
Joined: 3 years ago
Posts: 2128
July 20, 2020 13:34  

Mabula also thinks this usually happens when there is a calibration data issue. If you have the specific data, I can give it a look.


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