ethanliew / opencv-webcam

Webcam Video Display for Desktop and Web

The repository contains some simple webcam display programs implemented by using different programming languages and OpenCV. The web camera apps are available for both local and remote access via any web browser.

Programming Language List

• JavaScript
• C#
• Python
• Golang

JavaScript

Install opencv4nodejs:

```
npm i opencv4nodejs
```

Desktop

Run:

node desktop.js

Web

1. Run:

   node web.js
   

2. Open double-click.htm directly or visit locahost:2020 in any web browser.

CSharp

Install OpenCvSharp:

For Windows

dotnet add package OpenCvSharp4
dotnet add package OpenCvSharp4.runtime.win

Desktop

Run:

dotnet restore
dotnet run

Web

1. Run:

   dotnet restore
   dotnet run
   

2. Visit locahost:2020 in any web browser.

Python

Install OpenCV Python:

pip install opencv-python

Desktop

Run:

python desktop.py

Web

1. Run:

   python web.py
   

2. Visit locahost:2020 in any web browser.

Golang

Install gocv:

go get -u -d gocv.io/x/gocv

For Windows

1. Install MinGW-W64 x86_64-7.3.0-posix-seh-rt_v5-rev2

2. Install CMake

3. Build the OpenCV module:

   chdir %GOPATH%\src\gocv.io\x\gocv
   win_build_opencv.cmd
   

4. Add C:\opencv\build\install\x64\mingw\bin to your system path.

Desktop

Run:

go run desktop.go

Web

1. Run:

   go run web.go
   

2. Visit locahost:2020 in any web browser.

Blog

How to Use OpenCV to Build Simple Webcam Apps for Desktop and Web