By using the pixel merge feature provided by the hardware (instead of using software when pre-processing), the image quality is much better, aka less noise. Today I have no issues when blowing up the saturation slider, and this time there is no noise. Yesterday I couldn't move the saturation slider at all, since even a slight increase, it shows a bunch of noise and makes the image look terrible.
With 4 pixels merged into 1, I got 3.9 μm per pixel, which allows me to bump up the exposure time to 20s. However, I also tested the ISO settings, which show a better result in ISO 1600, compared to ISO 800. However, thanks to the light pollution, 15S with ISO 800 is on the edge of overexposure. So I didn't stick with higher ISO.
However, yesterday night was cloudy, and I'm too lazy to pick the picture one by one. So I dump them all into the software, and thanks to the cloud, now stars are not pinpoints anymore.
This is a good one, considering I didn't aim for anything interesting but just a random area of night sky where no trees or buildings are blocking the view. I mean, it's pretty random.
You can actually tell the Lyra (Fig 2) and the Sagitta (Fig 3).
And all of this, is shoot on an action camera, costs only 350 USD. Wow, I'm deeply amazed.
BTW I'm using Sequator for stacking, looks like it can handle the lens aberration pretty good.
Tried to stacking some night sky photos...
It looks like DeepSkyStacker is not capable of handling image produced by non-professional gear, I mean the action camera.
I spend a good amount of time calculating the NPF rule for my Insta360 Ace Pro, and trying to figure out how to do the aberration correction. And the result is... I would say not very ideal, when following the tutorial from here: https://www.youtube.com/watch?v=iuMZG-SyDCU
Maybe I should write my own software to do the aligning and stacking?
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Also I have a hard time distinguishing if a point is a star or just dust on my monitor...
Recently I finished watching Miss Kobayashi's Dragon Maid, and I have to say, it's really good. I think it's more or less like Nichijou. Nothing fancy or dramatic, just normal daily life, with dragons.
And I felt a little bit lost after finished this anime. So naturally, I tried to search the original work, like novel, books, manga, etc. And I found out even the publisher in Taiwan didn't follow up the progress.
Yes, the manga has started since 2013 May and now is still actively updating. I'd say that's better than most open source projects XD
Anyway, since the publisher didn't follow up the progress, I think all I left is learn Japanese, fly to Japan and buy the manga. Probably will take me several years to learn Japanese for manga reading, but I'll re-toot this toot when I do this in the future.
Weirdly, my system froze again.
The good news is that, this time is not caused by hard drive. However, the bad news is I don't know who caused it.
The dmesg said there is nothing wrong with the system and I can check the message after reboot. The only clue is that I switched from the browser back to IDEA, and everything froze and the gnome stops responding. Mouse doesn't move, no response from keyboard, and I tried REISUB and looks like some of the sysrq are disabled.
**I have a job now!**
I'm a Chinese shitizen, but I generally don't post in Chinese to avoid being suffering from other Chinese.
I'm physically a male, but I don't care how people think about my gender. I can be male, or female, or cat. But if you ask, I'd prefer to be referred to as male. Also, I support LGBT+ people, and I'm a copyleft. I don't think I'm too aggressive in arguing things, but sometimes I do. You should handle it with care.
I post about programming (most time is Java and Kotlin, unless I have a new love), and some random things I find interesting. I also post about my mental health, which is in a stable state of instability, thanks to my parents and Chinese society.
Anyway, if you want to follow me, I'm glad to see you. And, have a nice day.
Alt: @skyblond