// Update is called once per frame
void Update()
{
lock (ExecuteOnMainThread)
{
while (ExecuteOnMainThread.Count > 0)
{
ExecuteOnMainThread.Dequeue().Invoke();
}
}
if (webCamTextureToMatHelper.IsPlaying() && webCamTextureToMatHelper.DidUpdateThisFrame())
{
DebugUtils.VideoTick();
Mat grayMat = webCamTextureToMatHelper.GetMat();
Mat downScaleMat = null;
float DOWNSCALE_RATIO;
if (enableDownScale)
{
downScaleMat = imageOptimizationHelper.GetDownScaleMat(grayMat);
DOWNSCALE_RATIO = imageOptimizationHelper.downscaleRatio;
}
else
{
downScaleMat = grayMat;
DOWNSCALE_RATIO = 1.0f;
}
if (useOpenCVDetector)
{
Imgproc.equalizeHist(downScaleMat, downScaleMat);
}
if (enableDetection && !isDetecting)
{
isDetecting = true;
downScaleMat.copyTo(grayMat4Thread);
StartThread(ThreadWorker);
}
if (!useSeparateDetection)
{
if (hasUpdatedDetectionResult)
{
hasUpdatedDetectionResult = false;
rectangleTracker.UpdateTrackedObjects(detectionResult);
}
rectangleTracker.GetObjects(resultObjects, true);
// set original size image
OpenCVForUnityUtils.SetImage(faceLandmarkDetector, grayMat);
resultFaceLandmarkPoints.Clear();
foreach (Rect rect in resultObjects)
{
// restore to original size rect
rect.x = (int)(rect.x * DOWNSCALE_RATIO);
rect.y = (int)(rect.y * DOWNSCALE_RATIO);
rect.width = (int)(rect.width * DOWNSCALE_RATIO);
rect.height = (int)(rect.height * DOWNSCALE_RATIO);
// detect face landmark points
List <Vector2> points = faceLandmarkDetector.DetectLandmark(new UnityEngine.Rect(rect.x, rect.y, rect.width, rect.height));
resultFaceLandmarkPoints.Add(points);
}
if (!displayCameraImage)
{
// fill all black.
Imgproc.rectangle(grayMat, new Point(0, 0), new Point(grayMat.width(), grayMat.height()), new Scalar(0, 0, 0, 0), -1);
}
if (displayDetectedFaceRect)
{
// draw face rects
foreach (Rect rect in resultObjects)
{
OpenCVForUnityUtils.DrawFaceRect(grayMat, new UnityEngine.Rect(rect.x, rect.y, rect.width, rect.height), COLOR_GRAY, 2);
}
}
// draw face landmark points
foreach (List <Vector2> points in resultFaceLandmarkPoints)
{
OpenCVForUnityUtils.DrawFaceLandmark(grayMat, points, COLOR_WHITE, 4);
}
}
else
{
Rect[] rectsWhereRegions;
if (hasUpdatedDetectionResult)
{
hasUpdatedDetectionResult = false;
//Debug.Log("process: get rectsWhereRegions were got from detectionResult");
rectsWhereRegions = detectionResult.ToArray();
}
else
{
//Debug.Log("process: get rectsWhereRegions from previous positions");
if (useOpenCVDetector)
{
rectsWhereRegions = rectangleTracker.CreateCorrectionBySpeedOfRects();
}
else
{
rectsWhereRegions = rectangleTracker.CreateRawRects();
}
}
detectedObjectsInRegions.Clear();
foreach (Rect rect in rectsWhereRegions)
{
if (useOpenCVDetector)
{
DetectInRegion(downScaleMat, rect, detectedObjectsInRegions, cascade, true);
}
else
{
DetectInRegion(downScaleMat, rect, detectedObjectsInRegions, faceLandmarkDetector);
}
}
rectangleTracker.UpdateTrackedObjects(detectedObjectsInRegions);
rectangleTracker.GetObjects(resultObjects, false);
// set original size image
OpenCVForUnityUtils.SetImage(faceLandmarkDetector, grayMat);
resultFaceLandmarkPoints.Clear();
foreach (Rect rect in resultObjects)
{
// restore to original size rect
rect.x = (int)(rect.x * DOWNSCALE_RATIO);
rect.y = (int)(rect.y * DOWNSCALE_RATIO);
rect.width = (int)(rect.width * DOWNSCALE_RATIO);
rect.height = (int)(rect.height * DOWNSCALE_RATIO);
// detect face landmark points
List <Vector2> points = faceLandmarkDetector.DetectLandmark(new UnityEngine.Rect(rect.x, rect.y, rect.width, rect.height));
resultFaceLandmarkPoints.Add(points);
}
if (!displayCameraImage)
{
// fill all black.
Imgproc.rectangle(grayMat, new Point(0, 0), new Point(grayMat.width(), grayMat.height()), new Scalar(0, 0, 0, 0), -1);
}
if (displayDetectedFaceRect)
{
// draw previous rects
DrawDownScaleFaceRects(grayMat, rectsWhereRegions, DOWNSCALE_RATIO, COLOR_GRAY, 1);
// draw face rects
foreach (Rect rect in resultObjects)
{
OpenCVForUnityUtils.DrawFaceRect(grayMat, new UnityEngine.Rect(rect.x, rect.y, rect.width, rect.height), COLOR_GRAY, 2);
}
}
// draw face landmark points
foreach (List <Vector2> points in resultFaceLandmarkPoints)
{
OpenCVForUnityUtils.DrawFaceLandmark(grayMat, points, COLOR_WHITE, 4);
}
}
DebugUtils.TrackTick();
Utils.fastMatToTexture2D(grayMat, texture);
}
if (webCamTextureToMatHelper.IsPlaying())
{
Matrix4x4 cameraToWorldMatrix = Camera.main.cameraToWorldMatrix;
Matrix4x4 worldToCameraMatrix = cameraToWorldMatrix.inverse;
quad_renderer.sharedMaterial.SetMatrix("_WorldToCameraMatrix", worldToCameraMatrix);
// Position the canvas object slightly in front
// of the real world web camera.
Vector3 position = cameraToWorldMatrix.GetColumn(3) - cameraToWorldMatrix.GetColumn(2) * 2.2f;
// Rotate the canvas object so that it faces the user.
Quaternion rotation = Quaternion.LookRotation(-cameraToWorldMatrix.GetColumn(2), cameraToWorldMatrix.GetColumn(1));
gameObject.transform.position = position;
gameObject.transform.rotation = rotation;
}
}
/// <summary>
/// Raises the web cam texture to mat helper initialized event.
/// </summary>
public void OnWebCamTextureToMatHelperInitialized()
{
Debug.Log("OnWebCamTextureToMatHelperInitialized");
Mat grayMat = webCamTextureToMatHelper.GetMat();
texture = new Texture2D(grayMat.cols(), grayMat.rows(), TextureFormat.Alpha8, false);
texture.wrapMode = TextureWrapMode.Clamp;
quad_renderer = gameObject.GetComponent <Renderer>() as Renderer;
quad_renderer.sharedMaterial.SetTexture("_MainTex", texture);
quad_renderer.sharedMaterial.SetVector("_VignetteOffset", new Vector4(0, 0));
//Debug.Log("Screen.width " + Screen.width + " Screen.height " + Screen.height + " Screen.orientation " + Screen.orientation);
DebugUtils.AddDebugStr(webCamTextureToMatHelper.GetWidth() + " x " + webCamTextureToMatHelper.GetHeight() + " : " + webCamTextureToMatHelper.GetFPS());
if (enableDownScale)
{
DebugUtils.AddDebugStr("enableDownScale = true: " + imageOptimizationHelper.downscaleRatio + " / " + webCamTextureToMatHelper.GetWidth() / imageOptimizationHelper.downscaleRatio + " x " + webCamTextureToMatHelper.GetHeight() / imageOptimizationHelper.downscaleRatio);
}
Matrix4x4 projectionMatrix;
#if WINDOWS_UWP && !DISABLE_HOLOLENSCAMSTREAM_API
projectionMatrix = webCamTextureToMatHelper.GetProjectionMatrix();
quad_renderer.sharedMaterial.SetMatrix("_CameraProjectionMatrix", projectionMatrix);
#else
//This value is obtained from PhotoCapture's TryGetProjectionMatrix() method.I do not know whether this method is good.
//Please see the discussion of this thread.Https://forums.hololens.com/discussion/782/live-stream-of-locatable-camera-webcam-in-unity
projectionMatrix = Matrix4x4.identity;
projectionMatrix.m00 = 2.31029f;
projectionMatrix.m01 = 0.00000f;
projectionMatrix.m02 = 0.09614f;
projectionMatrix.m03 = 0.00000f;
projectionMatrix.m10 = 0.00000f;
projectionMatrix.m11 = 4.10427f;
projectionMatrix.m12 = -0.06231f;
projectionMatrix.m13 = 0.00000f;
projectionMatrix.m20 = 0.00000f;
projectionMatrix.m21 = 0.00000f;
projectionMatrix.m22 = -1.00000f;
projectionMatrix.m23 = 0.00000f;
projectionMatrix.m30 = 0.00000f;
projectionMatrix.m31 = 0.00000f;
projectionMatrix.m32 = -1.00000f;
projectionMatrix.m33 = 0.00000f;
quad_renderer.sharedMaterial.SetMatrix("_CameraProjectionMatrix", projectionMatrix);
#endif
quad_renderer.sharedMaterial.SetFloat("_VignetteScale", 0.0f);
cascade = new CascadeClassifier();
cascade.load(Utils.getFilePath("lbpcascade_frontalface.xml"));
#if !UNITY_WSA_10_0 || UNITY_EDITOR
// "empty" method is not working on the UWP platform.
if (cascade.empty())
{
Debug.LogError("cascade file is not loaded. Please copy from “OpenCVForUnity/StreamingAssets/” to “Assets/StreamingAssets/” folder. ");
}
#endif
grayMat4Thread = new Mat();
cascade4Thread = new CascadeClassifier();
cascade4Thread.load(Utils.getFilePath("haarcascade_frontalface_alt.xml"));
#if !UNITY_WSA_10_0 || UNITY_EDITOR
// "empty" method is not working on the UWP platform.
if (cascade4Thread.empty())
{
Debug.LogError("cascade file is not loaded. Please copy from “OpenCVForUnity/StreamingAssets/” to “Assets/StreamingAssets/” folder. ");
}
#endif
}
