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iot/labs/IoTClient/Assets/Scripts/FaceDetectionController.cs

257 lines
8.5 KiB

using System.Collections;
using OpenCVForUnity.CoreModule;
using OpenCVForUnity.ImgprocModule;
using OpenCVForUnity.ObjdetectModule;
using OpenCVForUnity.UnityUtils;
using OpenCVForUnity.UnityUtils.Helper;
using UnityEngine;
using UnityEngine.Networking;
using UnityEngine.SceneManagement;
using UnityEngine.UI;
namespace Assets.Scripts
{
[RequireComponent(typeof(WebCamTextureToMatHelper))]
internal class FaceDetectionController : MonoBehaviour
{
private GUIStyle fontSytle;
/// <summary>
/// The gray mat.
/// </summary>
private Mat grayMat;
/// <summary>
/// The texture.
/// </summary>
private Texture2D texture;
/// <summary>
/// The cascade.
/// </summary>
private CascadeClassifier cascade;
/// <summary>
/// The faces.
/// </summary>
private MatOfRect faces;
/// <summary>
/// The webcam texture to mat helper.
/// </summary>
private WebCamTextureToMatHelper webCamTextureToMatHelper;
private bool _isChecking;
private static object _lockObject = new object();
/// <summary>
/// LBP_CASCADE_FILENAME
/// </summary>
protected static readonly string LBP_CASCADE_FILENAME = "lbpcascade_frontalface.xml";
public Text text;
// Use this for initialization
private void Start()
{
webCamTextureToMatHelper = gameObject.GetComponent<WebCamTextureToMatHelper>();
cascade = new CascadeClassifier();
cascade.load(Utils.getFilePath(LBP_CASCADE_FILENAME));
// cascade.load (Utils.getFilePath ("haarcascade_frontalface_alt.xml"));
if (cascade.empty())
{
Debug.LogError("cascade file is not loaded. Please copy from “OpenCVForUnity/StreamingAssets/” to “Assets/StreamingAssets/” folder. ");
}
webCamTextureToMatHelper.Initialize();
webCamTextureToMatHelper.requestedIsFrontFacing = true;
}
/// <summary>
/// Raises the web cam texture to mat helper initialized event.
/// </summary>
public void OnWebCamTextureToMatHelperInitialized()
{
Debug.Log("OnWebCamTextureToMatHelperInitialized");
Mat webCamTextureMat = webCamTextureToMatHelper.GetMat();
texture = new Texture2D(webCamTextureMat.cols(), webCamTextureMat.rows(), TextureFormat.RGBA32, false);
gameObject.GetComponent<Renderer>().material.mainTexture = texture;
gameObject.transform.localScale = new Vector3(webCamTextureMat.cols(), webCamTextureMat.rows(), 1);
Debug.Log("Screen.width " + Screen.width + " Screen.height " + Screen.height + " Screen.orientation " + Screen.orientation);
float width = webCamTextureMat.width();
float height = webCamTextureMat.height();
float widthScale = (float)Screen.width / width;
float heightScale = (float)Screen.height / height;
if (widthScale < heightScale)
{
Camera.main.orthographicSize = (width * (float)Screen.height / (float)Screen.width) / 2;
}
else
{
Camera.main.orthographicSize = height / 2;
}
grayMat = new Mat(webCamTextureMat.rows(), webCamTextureMat.cols(), CvType.CV_8UC1);
faces = new MatOfRect();
}
/// <summary>
/// Raises the web cam texture to mat helper disposed event.
/// </summary>
public void OnWebCamTextureToMatHelperDisposed()
{
Debug.Log("OnWebCamTextureToMatHelperDisposed");
if (grayMat != null)
{
grayMat.Dispose();
}
if (texture != null)
{
Texture2D.Destroy(texture);
texture = null;
}
if (faces != null)
{
faces.Dispose();
}
}
/// <summary>
/// Raises the web cam texture to mat helper error occurred event.
/// </summary>
/// <param name="errorCode">Error code.</param>
public void OnWebCamTextureToMatHelperErrorOccurred(WebCamTextureToMatHelper.ErrorCode errorCode)
{
Debug.Log("OnWebCamTextureToMatHelperErrorOccurred " + errorCode);
}
// Update is called once per frame
private void Update()
{
if (webCamTextureToMatHelper.IsPlaying() && webCamTextureToMatHelper.DidUpdateThisFrame())
{
Mat rgbaMat = webCamTextureToMatHelper.GetMat();
Imgproc.cvtColor(rgbaMat, grayMat, Imgproc.COLOR_RGBA2GRAY);
Imgproc.equalizeHist(grayMat, grayMat);
if (cascade != null)
{
cascade.detectMultiScale(grayMat, faces, 1.1, 2, 2, new Size(grayMat.cols() * 0.2, grayMat.rows() * 0.2), new Size());
}
OpenCVForUnity.CoreModule.Rect[] rects = faces.toArray();
for (int i = 0; i < rects.Length; i++)
{
Imgproc.rectangle(rgbaMat, new Point(rects[i].x, rects[i].y), new Point(rects[i].x + rects[i].width, rects[i].y + rects[i].height), new Scalar(255, 0, 0, 255), 2);
}
Utils.fastMatToTexture2D(rgbaMat, texture);
if (rects.Length > 0)
{
StartCoroutine(this.FindFaceFromServer(texture.EncodeToJPG()));
}
}
}
/// <summary>
/// Raises the destroy event.
/// </summary>
private void OnDestroy()
{
webCamTextureToMatHelper.Dispose();
if (cascade != null)
cascade.Dispose();
}
/// <summary>
/// Raises the back button click event.
/// </summary>
public void OnBackButtonClick()
{
SceneManager.LoadScene(0);
}
/// <summary>
/// Raises the play button click event.
/// </summary>
public void OnPlayButtonClick()
{
webCamTextureToMatHelper.Play();
}
/// <summary>
/// Raises the pause button click event.
/// </summary>
public void OnPauseButtonClick()
{
webCamTextureToMatHelper.Pause();
}
/// <summary>
/// Raises the stop button click event.
/// </summary>
public void OnStopButtonClick()
{
webCamTextureToMatHelper.Stop();
}
/// <summary>
/// Raises the change camera button click event.
/// </summary>
public void OnChangeCameraButtonClick()
{
webCamTextureToMatHelper.requestedIsFrontFacing = !webCamTextureToMatHelper.IsFrontFacing();
}
private IEnumerator FindFaceFromServer(byte[] jpgBytes)//Mat grayMat)
{
if (!this._isChecking)
{
lock (_lockObject)
{
if (!this._isChecking)
{
this._isChecking = true;
}
{
//var tempTexture = new Texture2D(grayMat.cols(), grayMat.rows(), TextureFormat.RGBA32, false);
//var jpgBytes = tempTexture.EncodeToJPG();
var form = new WWWForm();
form.AddBinaryData("face", jpgBytes);
using (var request = UnityWebRequest.Post("http://192.168.253.1:8000/Account/FaceLogin", form))
{
yield return request.SendWebRequest();
if (request.isNetworkError || request.isHttpError)
{
Debug.Log(request.error);
}
else
{
Debug.Log(request.downloadHandler.text);
var result = JsonUtility.FromJson<LoginResult>(request.downloadHandler.text);
if (result.Success)
{
text.text = result.NickName;
}
}
}
}
this._isChecking = false;
}
}
}
}
}