June 24 2026 APP 2.0.0-beta46 has been released !
Improved internal memory configuration (lower ! memory usage), fixed beta45 startup issue, fixed Set Save Directory & 2-panel mosaics.
May 27 2026 APP 2.0.0-beta45 has been released !
Fully Multi-Threaded LNC, many improvements for the registration engine, platform upgrade, and further tuning of internal memory consumption and memory release back to OS.
Apr 14 2026: Google Pay, Apple Pay & WeChat Pay added as payment options
Update on the 2.0.0 release & the full manual
We are getting close to the 2.0.0 stable release and the full manual. The manual will soon become available on the website and also in PDF format. Both versions will be identical and once released, will start to follow the APP release cycle and thus will stay up-to-date to the latest APP version.
Once 2.0.0 is released, the price for APP will increase. Owner's license holders will not need to pay an upgrade fee to use 2.0.0, neither do Renter's license holders.
Hi, I'd like to use APP for RGB-combining my SHO data to get a hubble palette image.
I'm able to do so using Gimp and RawTherapee but APP seems to be able to provide less noisy results ...
I'know basically how to use the tool but I get no useful result. Also the sliders do not make sense to me.
I'd like to know exactly what th x and bg sliders do and why I see blue color if I only have red and green component added.
I'm quite experienced with image processing but I do not understand at all what's going on.
Can s/o please help me !?
I uploaded the registered fits here: https://treasure.arcane-mirage.de/index.php/s/d7cMy5bea9QtyA8
Feel free to experiment. I'd like to know which slider values give a useful result.
Thank you in advance : )
Another question: needs it to be done with stretched fits or unstretched fits ?
The combination and all processing is always done linearly, so unstretched (the preview you see is an auto-stretch, but not saved as such by APP). When combining narrowband data, you do need to make sure the different channels are properly aligned and registered to each other. You can then load them into RGBCombine and pick one of the presets or change it yourself, the presets should give a good starting point already usually.
Thank You,
understood this and already did it this way.
I just solved my issue by using a normalization method in the rgb combine window without multiply.
The normalizations "none", "add", and "add-scale" seem to work. The default "multiply-scale" or "mutiply" don't work for me.
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