- 6月 17 週五 202213:38
【微笑創客 Smile assassin】– OpenCV Windows 10 Python安裝教學
- 3月 19 週六 202200:17
【微笑創客 Smile assassin】– Opencv 直方圖均衡化(Histogram Equalization)

Opencv 直方圖均衡化(Histogram Equalization)
留言
- 3月 18 週五 202216:18
【微笑創客 Smile assassin】– Arduino 教學 透過Serial port 通訊來控制 LED

透過Serial port 通訊來控制 LED
本篇實作的功能是藉由Arduino 上所連接USB線來進通訊,運用基本的 Serial.available()、Serial.read()、Serial.readString()、Serial.print()、Serial.write() 的 Function,來實作出通訊的功能。
- 3月 12 週六 202222:55
【微笑創客 Smile assassin】– Opencv 隱藏浮水印

opencv 隱藏浮水印
本文章舉例的是灰階的圖片。我們先來講解圖片的LSB與MSB。灰階的圖片的像素值是0~255。
一張圖片是由很多的0~255的數值所組成。就是所謂的像素。
8個 bit,可以表示值的範圍為 0~255。
因此,比方說 226的二進制就是 11100010。
其中,越靠近左邊的越重要。也就是所謂的MSB。然後靠近右邊的相對來說較為不重要,就是所謂的LSB。
像是二進制中 1000000 轉換成十進制是等於128。相當於255的一半。
- 12月 10 週五 202122:37
Windows環境使用Linux的Make指令

Windows環境使用Linux的Make指令
- 12月 10 週五 202121:52
VScode C++ 建立編譯環境 (Windows 10)
- 12月 01 週三 202102:26
【被動收入】Honeygain 安全嗎? 只要擁有網路,變可以輕鬆賺錢

【被動收入】Honeygain 安全嗎? 只要擁有網路,變可以輕鬆賺錢
- 7月 04 週日 202100:57
Using VScode Remote - SSH develop and edit linux file (VSCode Remote透過 SSH 進行遠端開發 linux檔案)

Using VScode Remote - SSH develop annd edit linux file
VSCode Remote透過 SSH 進行遠端開發 linux文檔

Flutter and Android Studio and VScode Install on Windows 10 簡易安裝Flutter開發環境
System requirements
Operating Systems: Windows 7 SP1 or later (64-bit), x86-64 based.
Disk Space: 1.64 GB (does not include disk space for IDE/tools).
Tools:
- Flutter depends on these tools being available in your environment.
- Windows PowerShell 5.0 or newer (this is pre-installed with Windows 10)
- Git for Windows 2.x, with the Use Git from the Windows Command Prompt option.
If Git for Windows is already installed, make sure you can run git commands from the command prompt or PowerShell.
1. Check tools install and version
Search
powershellCheck powershell version
Get-Host | Select-Object VersionIf your version lower than 5.0 Download this PowerShell
Roll the page download this .msi and install
Successful Installed
Git Install
Git
open exe
Check successful installed PowerShell 7
git --version2. Install Flutter SDK
Download Flutter SDK flutter_windows_2.2.3-stable
Extract the zip file and cut flutter folder to C:/dev/
add
C:\dev\flutter\binCheck Flutter SDK Successful Installed
flutter --versionYou can input
flutter upgrade Check newest VersionInput
flutter --version Check Version has Installed newest3.Flutter doctor
This command checks your environment and displays a report of the status of your Flutter installation.
Check the output carefully for other software you might need to install or further tasks to perform
flutter doctorSee can see detail
flutter doctor -vChrome
Vscode
4.Java JDK
Java
%JAVA_HOME%\bin5.Intsall Android Studio SDK
Android Studio
Ignore error We solve this problem on later
flutter doctorflutter doctor --android-licensesError handler
Install Andorid SDK Command-line Tools(lastest)
flutter doctoryyyyyyySuccessd
flutter doctorSee all detail
flutter doctor -vFlutter can’t find the path from Android studio
We should set path to command.
flutter config --android-studio-dir="C:\Program Files\Android\Android Studio"restart cmd and input
flutter doctor -vSuccessful Install
5.Intsall Android Studio emulator
Handler before error by last step
Check virtualization: enable
If your virtualization disable you can go to bios to open Virtualization Technology.
If your cpu does’t support. This problem isn’t to solved.
You have virtualization enable.Then you sholud close Hyper-v on Windows function
You should cancel this function and restart your computer
Open Cmd use right click administrator
Disable-WindowsOptionalFeature -Online -FeatureName Microsoft-Hyper-V-Allbcdedit /set hypervisorlaunchtype offRestart your computer.
Open cmd check successed
And they we can try to install Intel@HAXM package
We first shoud delete Intel x86 Emulator Accelerator(HAXM installer)
Check the function has canceled
Download Haxm from Intel Github
Intel Haxm
Extract the zip file and Open haxm-7.7.0-setup
Successed Install HAXM
6.Install Flutter plus on Android Studio
7.Creat Flutter Project and Emulator
Project Should be use lowcase
If your emulator can’t start. You can try to reinstall Android SDK Platform-Tools
And you can use browser open flutter emulator
8.Use Vscode IDE develop Flutter
Install Flutter package
Pressd F1
flutter doctor check nothing problemPressd F1 create a new project
Flutter: New Projectinput your project name
Successd Create Project
You can chose your emulator
- 6月 07 週一 202119:21
Debian 10 permit root login in SSH
1.edit file
vi /etc/ssh/sshd_config
vi /etc/ssh/sshd_config

