UPDATE FROM MABULA
I have had a very rough 2 months unfortunately health wise. I was struck 3x in a row with bacterial infections. The second infection occurred  after a routine hospital checkup and I became very sick. I had to rest and take a lot of antibiotics. Once I was recovering and restarting work 1 month ago, I again became sick. The infection was not yet gone, so even more antibiotics and rest was needed. Needless to say, it took a lot of my energy and I needed a lot of rest.
Finally, the infection is really gone and my energy is coming back step-by-step now and I have started work again. I am terribly sorry to have kept you waiting for support. I will address all outstanding questions and e-mails step-by step and will be on the forum daily from today.
APP 2.0.0-beta47 will come soon as well, a lot of work was already completed before I became very ill, so the release is also nearly ready for you. Beta47 will be much faster actually. Many workflows will be more than 2x faster, mosaics can even be 10x faster than before because registration really received a major boost... all compared to beta46. Â Before I release it, I will make sure that everything is working properly and then I will release it.
I have only been using APP a week and I am very impressed. Great work. I was able to get going in a few minutes.
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I am sure you all know how defocus and star trails can get into your collections. I have some collections where PHD2 quit and my collections continued with 2 minute subs. I discovered something that is very useful and might make a good addition to APP. There is an algorithm called Lucy-Richardson deconvolution. I have been trying it in Matlab and it seems to do wonders for both these issues. The algorithm needs an estimated point spread function but a nice bright star gives you this. It takes about 5 minutes to calculate for a 61 mpixel image on a fast MacBook Pro.
I and post some examples.
Kurt
I think Mabula knows about that, he's also interested in deconvolution in a future version of APP. So, we'll need to see if that can be used for some of these examples. In the end though there is only so much software can do and it will probably not be the best for your data, fixing the issues at data gathering is always preferred. I think you can set your capture software to start over when guiding is not ok, I do that to filter a lot (or hopefully just a few) I would throw away anyway later.
Dear Kurt @ispybadguys,
Thanks and you are most welcome!
Thank you very much for bringing this to our attention.
Indeed, like Vincent says, we will introduce deconvolution in a future version to solve issues like you mention. It is on our ToDo 😉
Cheers,
Mabula
Thanks
I used to work at a National Laboratory and we designed and built space telescopes. To get the best possible image out of them we would take several images at different focus positions and we could compute the telescope wavefront error from this and the we used Lucy-Richardson to correct the images. Not only can you correct focus errors but also seeing conditions. Nothing is free you have to trade in some SNR to get this.
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Kurt
