19 June 2021: Our upload server https://upload.astropixelprocessor.com/ has been migrated successfully to our new office with higher upload and download speeds (nearly 10MByte/sec up/down ) ! We now have 1 general upload user called: upload with password: upload. The users upload1 - upload5 have been disabled.
31 May 2021: APP 1.083-beta2 has been released ! APP 1.083 stable will follow soon afterwards. It includes a completely new Star Reducer Tool, New File Saver Module, Improved Comet registration and much more, check the release notes here!
Quality score, before integration
Today I decided to run again the whole workflow step by step and not with automatic selections. Now I am in step 6 Integration and here is my question: The "best" approach is to check the Quality Score and then decide how many subs to stack?
For example I have 269 subs from M31, 4 different sessions (all the other capture settings same)
If I right click - sort on quality I get this back. So If for example want not to include subs with lower than a specific score, I have to adjust the slider on the 6 Integration tab accordingly, correct?
If that is correct, I find it a little bit confusing to calculate that, cause I can see that the sorting is per session and not for all subs at once. For every session the sorting resets.
Am I getting it right?
You can decide to stack less images by sliding the "lights to stack" in the integration tab and then APP will throw out the lowest quality. You can also just leave them in, setting it to "quality" will give much less importance to the lowest quality frames, but they still help to reduce the noise overall.
More subs will help to reduce the noise, but if those subs are not so good? For example if 2-3 subs have not so good stars? Wouldn't they "help" to create issues to the final image?
(garbage in - garbage out)
Yes, but if you set the integration to non automatic and on "Quality", then those frames will not influence the end result much (if you have enough in total) but will help in reducing the noise.