2019 November: Complete LRGB Tutorial of NGC292, The Small Magellanic Cloud by Christian Sasse, Astronomer in Charge of iTelescope.net
2019 September: Astro Pixel Processor and iTelescope.net celebrate a new Partnership!
Is there a manual from APP?
A complete manual in PDF format is not yet available, but I am working on this with high priority.
Adrie, APP is really simple, just load all your frames, set settings in menus 2)-6) and click on Integrate in 6) and APP will do the rest.
Have a look at this tutorial, it will show you how APP will automatically process multi-filter data including calibration:
Please let me know if you have additional questions,
Main developer of Astro Pixel Processor and owner of Aries Productions
No, as that will be announced clearly on the site. I have no ETA myself, @mabula-admin should know more about that so I tagged him.
Those new videos on the APP Vimeo account are very useful! However, I was wondering if there is going to be a PDF user manual? Even if it was just a current collection of pop-up information boxes it would be a nice reference.
@bbhtaylor : maybe something like this will be ok ?
[['DDP Saturation Threshold (SAT.TH): adjust DDP saturation background protection thresholdThis is a percentage of the data range. If your background (peak of the histogram) is at 15% of the histogram, you will protect the background by setting this value a bit higher than 15%, for instance at 20%. This slider is very usefull to apply saturation to nebula, galaxies and stars, while preventing the injection of unwanted chromatic noise into the background. Only applicable to colour data and if the saturation checkbox is enabled.Left image: the linear data stretched with auto DDP and saturation SAT at 20% and the threshold SAT.TH at 0%Right image: the linear data stretched with auto DDP and saturation SAT at 20% and the threshold SAT.TH at 25%, notice that the main object and the brights stars have the same color saturation, but that the background is more neutral by having prevented the injection of saturation in the low light areas of the image.']]
It's not well formatted but I don't have so much time ... if there is someone who can script in python (3.8) the output can be improved for sure 😉
Here is the script:
from bs4 import BeautifulSoup
for filename in glob.glob('*.class'):
html = open(filename, encoding="ISO-8859-1").read()
soup = BeautifulSoup(html)
table_all = soup.find_all("table") f = open('output.txt', 'a')
for table in table_all:
output_rows = 
for table_row in table.findAll('tr'):
columns = table_row.findAll('td')
output_row = 
for column in columns:
Hi Vincent, would it be possible to include a release date for each video? Something like:
04-Dec-19 : This tutorial consists of 9 parts and is a complete tutorial from loading the raw filter data to a final LRGB color image ready for publication and includes all processed data available for download.
Looking at the chats on the forum I can see that most of the problems and questions are generated by the fact, that APP does not have a decent user documentation. I myself is also in the IT business since 30 years and I can state that a good doc saves you tons of time on unnecessary customer questions. Sometimes writing the doc is more important that having tones of undocumented (and thus hidden) features. This is one important point what makes the difference between a program and a product.
Yes, you're right and this has been delayed quite a bit unfortunately. It's a struggle sometimes if one is a sole developer on a product. However, a manual is near completion and @mabula-admin should be able to post it pretty soon, I'll ask about the status directly.
I have confidence that the functionality is there, but I really hate bumping around and guessing, so I'm waiting on doc as well.
At the risk of offending, would you mind some unsolicited (trying to be helpful) advice from retired IT architect?
* Put together a short PDF with the goal of orienting a new user to concepts and vocabulary, but does not get down into the release-specific weeds. My guess is that you already have the raw material for this, and it would be more about organizing content than creating it.
Set a content budget and scope, say... something that could be read in 10-15 minutes. It should leave the reader feeling confident about how to navigate around the product, understand how to start experimenting with their specific workflow, and how to get help with questions along the way.
Developers have a hard time writing something like this, because they know too much and it's difficult for them to put themselves in the place of the uninformed user. IMO, someone on the team who is a super-user should write this, and NOT Mabula.
Include two flowchart-style example workflows, one for DSLR and one for RGB, each with only a high level commentary. Emphasis again on concepts and vocabulary, NOT hard-to-maintain release-specific details.
Set expectations that release-specific detail will be in the tooltips and videos. Plan on updating the orientation doc only as and when some major feature change requires it.
If you do this, I will volunteer as a Beta reader. I'd have no difficulty acting as an uninformed user! 🙂
* Skip the big manual that covers everything - I do understand how hard these are to do, let alone maintain. Just let it go.
* IMO, Mabula should concentrate on keeping the tooltips current to the releases, and with good coverage and release notes. Consider a weak/bad/missing tooltip to be a bug. Do keep the vocabulary and expectations consistent with that used in the user-level overview docs.
* Cull 'help' videos that will confuse new users, because the features they reference have aged out over time.
* Short, well-edited videos are effective for demoing a feature or specific workflow, but they become less effective (for me, anyway) as they lengthen and/or try to cover wider ground. which, IMO, is why people still ask for doc, when you have all these videos... 🙂
Hope this helps...