344 lines
14 KiB
C#
Executable File
344 lines
14 KiB
C#
Executable File
using UnityEngine;
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using UnityEngine.EventSystems;
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using UnityEngine.SceneManagement;
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using System;
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using System.Collections;
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using System.Collections.Generic;
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using OpenCVForUnity.VideoioModule;
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using OpenCVForUnity.TrackingModule;
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using OpenCVForUnity.CoreModule;
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using OpenCVForUnity.ImgprocModule;
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using OpenCVForUnity.UnityUtils;
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namespace OpenCVForUnityExample
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{
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/// <summary>
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/// Tracking Example
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/// An example of object tracking using the tracking (Tracking API) module.
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/// http://docs.opencv.org/trunk/d5/d07/tutorial_multitracker.html
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/// </summary>
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public class TrackingExample : MonoBehaviour
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{
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/// <summary>
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/// The capture.
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/// </summary>
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VideoCapture capture;
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/// <summary>
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/// The rgb mat.
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/// </summary>
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Mat rgbMat;
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/// <summary>
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/// The texture.
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/// </summary>
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Texture2D texture;
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/// <summary>
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/// The trackers.
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/// </summary>
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MultiTracker trackers;
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/// <summary>
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/// The objects.
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/// </summary>
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MatOfRect2d objects;
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/// <summary>
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/// The tracking color list.
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/// </summary>
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List<Scalar> trackingColorList;
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/// <summary>
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/// The selected point list.
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/// </summary>
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List<Point> selectedPointList;
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/// <summary>
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/// The stored touch point.
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/// </summary>
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Point storedTouchPoint;
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/// <summary>
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/// The FPS monitor.
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/// </summary>
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FpsMonitor fpsMonitor;
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#if UNITY_WEBGL && !UNITY_EDITOR
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IEnumerator getFilePath_Coroutine;
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#endif
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// Use this for initialization
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void Start ()
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{
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fpsMonitor = GetComponent<FpsMonitor> ();
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capture = new VideoCapture ();
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#if UNITY_WEBGL && !UNITY_EDITOR
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getFilePath_Coroutine = Utils.getFilePathAsync("768x576_mjpeg.mjpeg", (result) => {
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getFilePath_Coroutine = null;
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capture.open (result);
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Init ();
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});
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StartCoroutine (getFilePath_Coroutine);
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#else
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capture.open (Utils.getFilePath ("768x576_mjpeg.mjpeg"));
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Init ();
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#endif
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}
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private void Init ()
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{
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rgbMat = new Mat ();
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if (capture.isOpened ()) {
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Debug.Log ("capture.isOpened() true");
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} else {
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Debug.Log ("capture.isOpened() false");
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}
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Debug.Log ("CAP_PROP_FORMAT: " + capture.get (Videoio.CAP_PROP_FORMAT));
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Debug.Log ("CAP_PROP_POS_MSEC: " + capture.get (Videoio.CAP_PROP_POS_MSEC));
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Debug.Log ("CAP_PROP_POS_FRAMES: " + capture.get (Videoio.CAP_PROP_POS_FRAMES));
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Debug.Log ("CAP_PROP_POS_AVI_RATIO: " + capture.get (Videoio.CAP_PROP_POS_AVI_RATIO));
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Debug.Log ("CAP_PROP_FRAME_COUNT: " + capture.get (Videoio.CAP_PROP_FRAME_COUNT));
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Debug.Log ("CAP_PROP_FPS: " + capture.get (Videoio.CAP_PROP_FPS));
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Debug.Log ("CAP_PROP_FRAME_WIDTH: " + capture.get (Videoio.CAP_PROP_FRAME_WIDTH));
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Debug.Log ("CAP_PROP_FRAME_HEIGHT: " + capture.get (Videoio.CAP_PROP_FRAME_HEIGHT));
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capture.grab ();
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capture.retrieve (rgbMat, 0);
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int frameWidth = rgbMat.cols ();
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int frameHeight = rgbMat.rows ();
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texture = new Texture2D (frameWidth, frameHeight, TextureFormat.RGB24, false);
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gameObject.transform.localScale = new Vector3 ((float)frameWidth, (float)frameHeight, 1);
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float widthScale = (float)Screen.width / (float)frameWidth;
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float heightScale = (float)Screen.height / (float)frameHeight;
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if (widthScale < heightScale) {
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Camera.main.orthographicSize = ((float)frameWidth * (float)Screen.height / (float)Screen.width) / 2;
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} else {
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Camera.main.orthographicSize = (float)frameHeight / 2;
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}
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capture.set (Videoio.CAP_PROP_POS_FRAMES, 0);
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gameObject.GetComponent<Renderer> ().material.mainTexture = texture;
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trackers = MultiTracker.create ();
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objects = new MatOfRect2d ();
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trackingColorList = new List<Scalar> ();
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selectedPointList = new List<Point> ();
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}
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// Update is called once per frame
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void Update ()
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{
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#if ((UNITY_ANDROID || UNITY_IOS) && !UNITY_EDITOR)
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//Touch
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int touchCount = Input.touchCount;
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if (touchCount == 1)
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{
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Touch t = Input.GetTouch(0);
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if(t.phase == TouchPhase.Ended && !EventSystem.current.IsPointerOverGameObject (t.fingerId)) {
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storedTouchPoint = new Point (t.position.x, t.position.y);
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//Debug.Log ("touch X " + t.position.x);
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//Debug.Log ("touch Y " + t.position.y);
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}
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}
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#else
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//Mouse
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if (Input.GetMouseButtonUp (0) && !EventSystem.current.IsPointerOverGameObject ()) {
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storedTouchPoint = new Point (Input.mousePosition.x, Input.mousePosition.y);
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//Debug.Log ("mouse X " + Input.mousePosition.x);
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//Debug.Log ("mouse Y " + Input.mousePosition.y);
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}
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#endif
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if (selectedPointList.Count == 1) {
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if (storedTouchPoint != null) {
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ConvertScreenPointToTexturePoint (storedTouchPoint, storedTouchPoint, gameObject, rgbMat.cols (), rgbMat.rows ());
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OnTouch (rgbMat, storedTouchPoint);
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storedTouchPoint = null;
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}
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}
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//Loop play
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if (capture.get (Videoio.CAP_PROP_POS_FRAMES) >= capture.get (Videoio.CAP_PROP_FRAME_COUNT))
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capture.set (Videoio.CAP_PROP_POS_FRAMES, 0);
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//error PlayerLoop called recursively! on iOS.reccomend WebCamTexture.
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if (selectedPointList.Count != 1 && capture.grab ()) {
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capture.retrieve (rgbMat, 0);
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Imgproc.cvtColor (rgbMat, rgbMat, Imgproc.COLOR_BGR2RGB);
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if (storedTouchPoint != null) {
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ConvertScreenPointToTexturePoint (storedTouchPoint, storedTouchPoint, gameObject, rgbMat.cols (), rgbMat.rows ());
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OnTouch (rgbMat, storedTouchPoint);
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storedTouchPoint = null;
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}
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if (selectedPointList.Count < 2) {
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foreach (var point in selectedPointList) {
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Imgproc.circle (rgbMat, point, 6, new Scalar (0, 0, 255), 2);
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}
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} else {
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using (MatOfPoint selectedPointMat = new MatOfPoint (selectedPointList.ToArray ())) {
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OpenCVForUnity.CoreModule.Rect region = Imgproc.boundingRect (selectedPointMat);
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trackers.add (TrackerKCF.create (), rgbMat, new Rect2d (region.x, region.y, region.width, region.height));
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}
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selectedPointList.Clear ();
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trackingColorList.Add (new Scalar (UnityEngine.Random.Range (0, 255), UnityEngine.Random.Range (0, 255), UnityEngine.Random.Range (0, 255)));
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}
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trackers.update (rgbMat, objects);
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// bool updated = trackers.update (rgbMat, objects);
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// Debug.Log ("updated " + updated);
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// if (!updated && objects.rows () > 0) {
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// OnResetTrackerButtonClick ();
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// }
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Rect2d[] objectsArray = objects.toArray ();
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for (int i = 0; i < objectsArray.Length; i++) {
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Imgproc.rectangle (rgbMat, objectsArray [i].tl (), objectsArray [i].br (), trackingColorList [i], 2, 1, 0);
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}
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if (selectedPointList.Count != 1) {
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//Imgproc.putText (rgbMat, "Please touch the screen, and select tracking regions.", new Point (5, rgbMat.rows () - 10), Core.FONT_HERSHEY_SIMPLEX, 0.8, new Scalar (255, 255, 255, 255), 2, Imgproc.LINE_AA, false);
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if (fpsMonitor != null) {
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fpsMonitor.consoleText = "Please touch the screen, and select tracking regions.";
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}
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} else {
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//Imgproc.putText (rgbMat, "Please select the end point of the new tracking region.", new Point (5, rgbMat.rows () - 10), Core.FONT_HERSHEY_SIMPLEX, 0.8, new Scalar (255, 255, 255, 255), 2, Imgproc.LINE_AA, false);
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if (fpsMonitor != null) {
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fpsMonitor.consoleText = "Please select the end point of the new tracking region.";
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}
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}
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Utils.fastMatToTexture2D (rgbMat, texture);
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}
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}
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private void OnTouch (Mat img, Point touchPoint)
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{
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if (selectedPointList.Count < 2) {
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selectedPointList.Add (touchPoint);
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if (!(new OpenCVForUnity.CoreModule.Rect (0, 0, img.cols (), img.rows ()).contains (selectedPointList [selectedPointList.Count - 1]))) {
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selectedPointList.RemoveAt (selectedPointList.Count - 1);
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}
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}
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}
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/// <summary>
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/// Converts the screen point to texture point.
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/// </summary>
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/// <param name="screenPoint">Screen point.</param>
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/// <param name="dstPoint">Dst point.</param>
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/// <param name="texturQuad">Texture quad.</param>
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/// <param name="textureWidth">Texture width.</param>
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/// <param name="textureHeight">Texture height.</param>
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/// <param name="camera">Camera.</param>
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private void ConvertScreenPointToTexturePoint (Point screenPoint, Point dstPoint, GameObject textureQuad, int textureWidth = -1, int textureHeight = -1, Camera camera = null)
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{
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if (textureWidth < 0 || textureHeight < 0) {
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Renderer r = textureQuad.GetComponent<Renderer> ();
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if (r != null && r.material != null && r.material.mainTexture != null) {
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textureWidth = r.material.mainTexture.width;
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textureHeight = r.material.mainTexture.height;
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} else {
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textureWidth = (int)textureQuad.transform.localScale.x;
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textureHeight = (int)textureQuad.transform.localScale.y;
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}
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}
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if (camera == null)
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camera = Camera.main;
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Vector3 quadPosition = textureQuad.transform.localPosition;
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Vector3 quadScale = textureQuad.transform.localScale;
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Vector2 tl = camera.WorldToScreenPoint (new Vector3 (quadPosition.x - quadScale.x / 2, quadPosition.y + quadScale.y / 2, quadPosition.z));
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Vector2 tr = camera.WorldToScreenPoint (new Vector3 (quadPosition.x + quadScale.x / 2, quadPosition.y + quadScale.y / 2, quadPosition.z));
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Vector2 br = camera.WorldToScreenPoint (new Vector3 (quadPosition.x + quadScale.x / 2, quadPosition.y - quadScale.y / 2, quadPosition.z));
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Vector2 bl = camera.WorldToScreenPoint (new Vector3 (quadPosition.x - quadScale.x / 2, quadPosition.y - quadScale.y / 2, quadPosition.z));
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using (Mat srcRectMat = new Mat (4, 1, CvType.CV_32FC2))
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using (Mat dstRectMat = new Mat (4, 1, CvType.CV_32FC2)) {
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srcRectMat.put (0, 0, tl.x, tl.y, tr.x, tr.y, br.x, br.y, bl.x, bl.y);
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dstRectMat.put (0, 0, 0, 0, quadScale.x, 0, quadScale.x, quadScale.y, 0, quadScale.y);
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using (Mat perspectiveTransform = Imgproc.getPerspectiveTransform (srcRectMat, dstRectMat))
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using (MatOfPoint2f srcPointMat = new MatOfPoint2f (screenPoint))
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using (MatOfPoint2f dstPointMat = new MatOfPoint2f ()) {
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Core.perspectiveTransform (srcPointMat, dstPointMat, perspectiveTransform);
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dstPoint.x = dstPointMat.get (0, 0) [0] * textureWidth / quadScale.x;
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dstPoint.y = dstPointMat.get (0, 0) [1] * textureHeight / quadScale.y;
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}
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}
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}
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/// <summary>
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/// Raises the destroy event.
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/// </summary>
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void OnDestroy ()
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{
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capture.release ();
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if (rgbMat != null)
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rgbMat.Dispose ();
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if (texture != null) {
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Texture2D.Destroy (texture);
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texture = null;
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}
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if (trackers != null)
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trackers.Dispose ();
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if (objects != null)
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objects.Dispose ();
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#if UNITY_WEBGL && !UNITY_EDITOR
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if (getFilePath_Coroutine != null) {
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StopCoroutine (getFilePath_Coroutine);
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((IDisposable)getFilePath_Coroutine).Dispose ();
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}
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#endif
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}
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/// <summary>
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/// Raises the back button click event.
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/// </summary>
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public void OnBackButtonClick ()
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{
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SceneManager.LoadScene ("OpenCVForUnityExample");
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}
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/// <summary>
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/// Raises the reset tracker button click event.
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/// </summary>
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public void OnResetTrackerButtonClick ()
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{
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if (trackers != null) {
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trackers.Dispose ();
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trackers = null;
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}
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if (objects != null) {
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objects.Dispose ();
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objects = null;
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}
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trackers = MultiTracker.create ();
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objects = new MatOfRect2d ();
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trackingColorList.Clear ();
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selectedPointList.Clear ();
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}
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}
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} |