Face Detection

A simple C# face detection from EmguCV library. Using the classifier is "haarcascade_frontalface_alt2.xml"

Solution

Find all faces that appear in realtime viedo stream by fast performance technical.

• Reduce the size of frame by gaussian pyramid down to 320x240 and keep resize ratio.
• Detect the faces in some frame and keep face output to next frame.
• Interpolate the faces result by increase size to original frame.

Requirement

1. Visual Studio 2017
2. Nuget Emgu.CV 3.4.3.3016 and dependency ZedGraph 5.1.7

Using

The core of Engine class can be set the camera usb port in index (0 base index have the default value).

int cameraUSBPort = 0;
var engine = new Engine(cameraUSBPort);

To run the engine use the Run() method with set the FaceDetection class object. The FaceDetection class must have to set classifier xml file (Default value we use haarcascade_frontalface_alt2.xml).

engine.Run(new FaceDetection());

To exit program use Esc key.

Output