screen

在一台電腦上多畫面與多鍵盤滑鼠操作遊戲：Universal Split Screen

在 Hacker News Daily 上看到這款工具，可以在 Windows 上把拆出多個畫面，並且提供給不同的鍵盤與滑鼠使用：「Universal Split Screen」，而且是 open source 專案 (使用 MIT License)，程式碼在 UniversalSplitScreen/UniversalSplitScreen 這邊。

理論上只要不是太吃資源的遊戲，應該都適合這個方法搞 (從他列出來的遊戲列表看起來，似乎都不會太吃 CPU 與顯卡)。

另外在想是不是也可以拿給其他用途使用，像是 PuTTY 之類的程式？

Twitter 對 2x 與 3x 的圖片的研究...

所以發現很多時候用 2x 的圖片就夠了？：「Capping image fidelity on ultra-high resolution devices」。

會這樣討論主要是發現螢幕特性：

The most modern screens are OLED. These screens boast some really great features like pure blacks, and are marketed as 3x scale. However, nearly no "3x scale" OLED actually has perfect 3x3 pixels per dot on their screen.

因為螢幕不是真的到 3x 的要求，丟 2x 的圖片出去就好，省頻寬又省下載時間：

This means that most OLED screens that say they are 3x resolution, are actually 3x in the green color, but only 1.5x in the red and blue colors. Showing a 3x resolution image in the app vs a 2x resolution image will be visually the same, though the 3x image takes significantly more data. Even true 3x resolution screens are wasteful as the human eye cannot see that level of detail without something like a magnifying glass.

省下 38% 的資料量，32% 的時間：

There's no difference that the human eye can see, but will save 38% on data and 32% on latency on the capped image load for this particular example which is reflective of most images that load on Twitter.

這也另外帶出了其他的想法，如果沒有太多時間研究的話，可以考慮先提供 2x 的就好，不需要特地做 3x 的版本...

Slack 的 Screen Sharing

Slack 付費版將有 Screen Sharing 的功能了，對於 Remote Work 的團隊又更方便了：「Screen sharing comes to Slack video calls」。

When you’re working with teammates over a Slack video call, you may have something — a document, a chunk of code, the latest designs — that you want to share with your team. Now you can. Screen sharing is now available across teams on Slack’s paid plans.

需要使用 Windows 與 Mac 版的 desktop 處理：

Screen sharing is rolling out over the next few days to paid teams on the latest versions of our Slack for Mac and Slack for Windows desktop apps.

把才能用在奇怪的地方：老闆偵測器

作者用 OpenCV 學習老闆的臉，然後當老闆走過來的時候把畫面切到努力工作中的 screenshot XDDD：「Deep Learning Enables You to Hide Screen when Your Boss is Approaching」。

“My boss left his seat and he was approaching to my seat.”

“OpenCV has detected the face and input the image into the learned model.”

“The screen has switched by recognizing him! ヽ(‘ ∇‘ )ノﾜｰｲ”

作者是個日本人 (要說不意外嗎 XDDD)，這套軟體的程式碼在「Hironsan/BossSensor」這邊 XDDD

超級浪費才能 XDDD

記得之前有提到最多人裝的那幾個 extension 都有嵌入各種 malware 或 spyware，所以試著找有哪個是正常的... 後來想到用 Google 找 GitHub 上的 open source 專案，找到這個：「One-click full page screen captures in Google Chrome」，官方說明頁面在「Full Page Screen Capture Chrome Extension」：