[유니티] OpenCV+ Face Detection

https://assetstore.unity.com/packages/tools/integration/opencv-plus-unity-85928

OpenCV plus Unity | 기능 통합 | Unity Asset Store

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using OpenCvSharp;

public class faceDetector : MonoBehaviour
{
    WebCamTexture _webCamTexture;
    CascadeClassifier cascade;
    OpenCvSharp.Rect MyFace;
    OpenCvSharp.Rect[] faces;
    void Start()
    {
        WebCamDevice[] devices = WebCamTexture.devices;

        _webCamTexture = new WebCamTexture(devices[0].name);
        _webCamTexture.Play();
        cascade = new CascadeClassifier(Application.dataPath + "/OpenCV+Unity/Demo/Face_Detector/" + "haarcascade_frontalface_default.xml");
    }

    void Update()
    {
        //GetComponent<Renderer>().material.mainTexture = _webCamTexture;
        Mat frame = OpenCvSharp.Unity.TextureToMat(_webCamTexture);

        findNewFace(frame);
        display(frame);
    }

    void findNewFace(Mat frame)
    {
        faces = cascade.DetectMultiScale(frame, 1.1, 2, HaarDetectionType.ScaleImage);
        if(faces.Length >= 1)
        {
            Debug.Log(faces[0].Location);
            Debug.Log("detected face num : "+ faces.Length);

            MyFace = faces[0];
        }
        else
        {
            Debug.Log("could not reconginze the face");
        }
    }

    void display(Mat frame)
    {
        if(MyFace != null && faces.Length >= 1)
        {
            frame.Rectangle(MyFace, new Scalar(0, 255, 0), 2);
        }
        Texture newtexture = OpenCvSharp.Unity.MatToTexture(frame);
        GetComponent<Renderer>().material.mainTexture = newtexture;
    }
}

plane 3D 게임 오브젝트를 만들고 위 스크립트를 add Component해준다.