天空вℓσи∂ @skyblond@qoto.org
- TZ
- Asia/Shanghai (UTC +8)
- Blog(zh_CN)
- https://skyblond.info/about.html
- Language
- Kotlin/Java/中文/English/Google translate
**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 a 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 (for Chinese content): @skyblond
Joined Dec 2020
@freemo I have a #3776 Century (F tip) from Platinum, it's the cheapest model (~100 USD). I started using it since high school and now I still use it.
I'm not a fan of collecting pens, but I do like using pens since I don't need to swap the cartridges (the Gel Pen Refills). This pen works very well. Before that, I was using LAMY (also the cheapest model, about ~20 USD), but it had a lot of problems and I eventually decided to invest more.
I like using carbon black ink, however it's not good for pens, especially when you don't write a lot. But this pen handles it pretty well.
But now I rarely do handwriting after graduated. I don't know if this is good, but the ultrasonic cleaner is pretty good at dealing with dried carbon ink.
天空вℓσи∂
boosted
天空вℓσи∂
boosted
Nvidia under Elon Musk 😅😂 thank god he is not ceo for Nvidia 🥲 taken from LTT Twitter handle
天空вℓσи∂
boosted
Did goto just go offline for a while?
To resist jpeg compression, I use the LL matrix of the Haar DWT result (which should contain low freq data that can be preserved by JPEG), then chunk it into 4x4 chunks, then apply DCT and SVD to each chunk, then encode the bits into the first and second element of the S matrix.
It certainly works, but any other steganography could work too if it leaves a strong and visible mark on the image, which surely can be preserved by JPEG compression (Modify low freq in FFT space, or just use the MSB).
I swear there are visible stripes in the dark area, like the screenshot I take in picture 4. But I don't know why it's not visible anymore, probably because of the compression. LOL
Tried to implement a paper based on its abstract, because I'm not willing to pay 40 USD. The result is a mix of success and failure.
The paper introduced a steganography called DWT-DCT-SVD, which is applying DWT to a picture and then applying DCT and finally encoding bits into the S matrix of the SVD operation.
The first picture is encoded picture after jpeg compression (photoshop, quality 8, raw picture is 90MB in png), picture 2 is the intended decoded result, and picture 3 is the jpeg decoded result. I would say not bad...
... unless you zoom in on the picture and notice there are a lot of stripes giving off the fact that this picture is suspicious (picture 4).
天空вℓσи∂
boosted
天空вℓσи∂
boosted
著名代理切换扩展 SwitchyOmega 的 Edge 应用商店版本非官方发布且有恶意代码植入。 开发者已确认该扩展系第三方发布，现已被微软确认为恶意软件下架删除。请认准官方 Chrome 发布渠道。（abcThoughts） 风向旗参考快讯 Forwarded from 风向旗参考快讯
天空вℓσи∂
boosted
非常赞同
马斯克真得比任何富豪都需要一场参观泰坦尼克号的潜水艇之旅_(:з」∠)_
天空вℓσи∂
boosted
天空вℓσи∂
boosted
Many moons ago, I did #Linux from scratch. After that, I decided never to do it again to keep my sanity.
Even after 5 years, Detroit: Become human is still a great game to enjoy.
And let chatgpt playing it just take the game to a higher level.
Also, I feel like it's a very old game (decades ago), but actually just 5 years ago. hmmmm
For the question in the begining of the video, the first idea I came up is the flow of energy. Something like water, which you can generate electricity from it if it's high engough. You have to get rid of the water, but you extract the potential from it. The energy might be same, you have to get rid of the energy, but you extract something from it to use.
Later in the video, I learn that kind of things are called entropy.
Phsysic is fun, as long as there is no exam.
----
The Most Misunderstood Concept in Physics
by Veritasium
https://www.youtube.com/watch?v=DxL2HoqLbyA
天空вℓσи∂
boosted
天空вℓσи∂
boosted
Oh my 😱 google is so desperate now 👇 what do you think? Time to install pihole https://www.cyberciti.biz/faq/ubuntu-linux-install-pi-hole-with-a-openvpn/ or dnscrypt proxy with adblocker https://www.cyberciti.biz/faq/how-to-install-dnscrypt-proxy-with-adblocker-on-linux/ ?
天空вℓσи∂
boosted
天空вℓσи∂
boosted
- TZ
- Asia/Shanghai (UTC +8)
- Blog(zh_CN)
- https://skyblond.info/about.html
- Language
- Kotlin/Java/中文/English/Google translate
**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 a 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 (for Chinese content): @skyblond
Joined Dec 2020
