It has a major performance boost of 30-50% over 2.0.0-beta39 from calibration to integration, for mosaics even faster! We extensively optimized many critical parts of APP. All has been tested to guarantee correct optimizations. Drizzle and image resampling is much faster for instance, those modules have been completely rewritten. Much less memory usage. LNC 2.0 will be released which works much better and faster than LNC in it's current state. Improved Outlier Rejection with LN 2.0 rejection. macOS CMD+A works now in file chooser ! And more, all will be added to the release notes in the coming hours...
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.
I'm trialling the software and really like the look of it. The mosaic function works brilliantly and I've been able to put together 4 pane mosaics in no time at all for Ha, OIII, R, and G data sets I've got. However I'm baffled as when I've tried to assembly the 4 panes of blue I have, only 3 panes of the mosaic will assemble. I realised that pane 2 was rotated 180 degrees from its true orientation so that was re-saved and loaded but that still didn't work. Any guidance you give would be much appreciated ! I will e-mail the stacked panes to you via we transfer and thank you in advance !
I'm trialling the software and really like the look of it. The mosaic function works brilliantly and I've been able to put together 4 pane mosaics in no time at all for Ha, OIII, R, and G data sets I've got. However I'm baffled as when I've tried to assembly the 4 panes of blue I have, only 3 panes of the mosaic will assemble. I realised that pane 2 was rotated 180 degrees from its true orientation so that was re-saved and loaded but that still didn't work. Any guidance you give would be much appreciated ! I will e-mail the stacked panes to you via we transfer and thank you in advance !
Thank your for your question and nice compliments and welcome to the APP forum 😉Â
Apologies for the delay in my response. Â
Regarding your blue 4 panel mosaic layer:
maybe registration succeeds if you can increase the amount of detected stars in 3), Have you tried that? increase max star count and/or lower the kappa value for detect above noise level
an additional solution can be to increase the scale stop in 4) register, but first try to increase the star count.
lastly, increase the #number of overlaps in 4) to 9.
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I did receive the link with your data, I'll try to have a look at it tomorrow 😉
You're welcome Kit. I did have a look because the mosaic registration is very complicated and I need/want to see for myself if this is a special case.
(While testing I even found a little bug which was easily fixed luckily.)
First of all, a frame that is rotated by 180- degrees should be no problem, you don't need to rotate it yourself. The registration is invariant for rotations.
You need to be carefull if you register data that is flipped in one of the axes (x/y) though (registration of data of different telescopes). Then you need to enable the
flip descriptors in X/Y
checkbox.
I have tried a lot of things, but it seems that your panel 2 can't be registered into the mosaic. Perhaps the area of overlap is too small or it doesn't have overlap at all?
I do see that you have cropped the mosaic panels, didn't you crop too much perhaps ?
If you create the initial panels, with both MBB & LNC, then chances are you don't need to crop anything to make the mosaic from the initial panels, at least try to make the mosaic from the uncropped panels.
What puzzles me is that using other software I was able to assemble the mosaic in blue with these very cropped images. However, that process takes a lot more time and effort as the individual panels are registered to a master frame. It also requires cropping out stars on the edge of panes that cause artifacts so it's fairly time consuming, especially with larger mosaics than 2 x 2!
I have now tried with the un-cropped panels and APP assembled the mosaic as it should (although I couldn't get any nice joins at all, albeit without too much experimentation). However, these uncropped frames weren't stacked in APP so had stacking artifacts at the edges as the data was collected over several nights.
I'll try stacking them in APP over the next few days and report back, but I still do wonder why the panes will assemble into a mosaic in 1 piece of software and not another... What I can say is that the for the HA, Red, and Green panes for this image that I did manage to put into a mosaic in APP, the process was much simpler with significantly less user input required.
I will be interested to know how much overlap there actually is. It must be very little, since i know that APP can register frames with only 5% overlap like this (professional data of NASA's WISE telescoop):
Which other software did you use? Maybe it registers not on stars? APP needs stars to be able to register data (at the moment.)
If you create the panels in APP, using LNC and MBB the stack artefacts can be avoided to a large degree preventing any cropping to be done on mosaic creation. Like this:
Didin't need to crop anything and this panel was used (top Right panel ) 100% in a bigger 6x2 (RGB + Ha) panel HaRGB mosaic (Barnards Loop, data courtesy of Yves van den Broek):
Were you able to complete the mosaic now ? and the multi-channel mosaic?
I used Pixinsight to previously create the blue mosaic. The star alignment has a 'register/union - mosaic' process and it was happy with these cropped panes. I tried again tonight to be sure.
As for the overlap - I'm pretty sure I set my capture software to a 10% overlap although this would have been reduced a little by the cropping...
I haven't actually got round to trying the stacking in APP yet as I found I was able to use the blue mosaic I previously created to go with the HA, R and G mosaics I created in APP. The stars have all aligned nicely in the different channels. I've attached a JPEG of the image to give you an indication of how the panels finally aligned if that helps.
Incidentally, APP is still by far the easiest software I've used to create mosaics. It's handled an 8 pane mosaic I'm working on with no fuss, so I think it's something I'll buy !
I used Pixinsight to previously create the blue mosaic. The star alignment has a 'register/union - mosaic' process and it was happy with these cropped panes. I tried again tonight to be sure.
As for the overlap - I'm pretty sure I set my capture software to a 10% overlap although this would have been reduced a little by the cropping...
I haven't actually got round to trying the stacking in APP yet as I found I was able to use the blue mosaic I previously created to go with the HA, R and G mosaics I created in APP. The stars have all aligned nicely in the different channels. I've attached a JPEG of the image to give you an indication of how the panels finally aligned if that helps.
Incidentally, APP is still by far the easiest software I've used to create mosaics. It's handled an 8 pane mosaic I'm working on with no fuss, so I think it's something I'll buy !
