/// <summary>
/// Raises the web cam texture to mat helper initialized event.
/// </summary>
public void OnWebCamTextureToMatHelperInitialized()
{
UnityEngine.Debug.Log("OnWebCamTextureToMatHelperInitialized");
OpenCVForUnity.CoreModule.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);
UnityEngine.Debug.Log("Screen.width " + Screen.width + " Screen.height " + Screen.height + " Screen.orientation " + Screen.orientation);
if (fpsMonitor != null)
{
fpsMonitor.Add("width", webCamTextureMat.width().ToString());
fpsMonitor.Add("height", webCamTextureMat.height().ToString());
fpsMonitor.Add("orientation", Screen.orientation.ToString());
}
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;
}
matOpFlowThis = new OpenCVForUnity.CoreModule.Mat();
matOpFlowPrev = new OpenCVForUnity.CoreModule.Mat();
MOPcorners = new MatOfPoint();
mMOP2fptsThis = new MatOfPoint2f();
mMOP2fptsPrev = new MatOfPoint2f();
mMOP2fptsSafe = new MatOfPoint2f();
mMOBStatus = new MatOfByte();
mMOFerr = new MatOfFloat();
}
// Update is called once per frame
void Update()
{
if (webCamTextureToMatHelper.IsPlaying() && webCamTextureToMatHelper.DidUpdateThisFrame())
{
OpenCVForUnity.CoreModule.Mat rgbaMat = webCamTextureToMatHelper.GetMat();
if (mMOP2fptsPrev.rows() == 0)
{
// first time through the loop so we need prev and this mats
// plus prev points
// get this mat
Imgproc.cvtColor(rgbaMat, matOpFlowThis, Imgproc.COLOR_RGBA2GRAY);
// copy that to prev mat
matOpFlowThis.copyTo(matOpFlowPrev);
// get prev corners
Imgproc.goodFeaturesToTrack(matOpFlowPrev, MOPcorners, iGFFTMax, 0.05, 20);
mMOP2fptsPrev.fromArray(MOPcorners.toArray());
// get safe copy of this corners
mMOP2fptsPrev.copyTo(mMOP2fptsSafe);
}
else
{
// we've been through before so
// this mat is valid. Copy it to prev mat
matOpFlowThis.copyTo(matOpFlowPrev);
// get this mat
Imgproc.cvtColor(rgbaMat, matOpFlowThis, Imgproc.COLOR_RGBA2GRAY);
// get the corners for this mat
Imgproc.goodFeaturesToTrack(matOpFlowThis, MOPcorners, iGFFTMax, 0.05, 20);
mMOP2fptsThis.fromArray(MOPcorners.toArray());
// retrieve the corners from the prev mat
// (saves calculating them again)
mMOP2fptsSafe.copyTo(mMOP2fptsPrev);
// and save this corners for next time through
mMOP2fptsThis.copyTo(mMOP2fptsSafe);
}
/*
* Parameters:
* prevImg first 8-bit input image
* nextImg second input image
* prevPts vector of 2D points for which the flow needs to be found; point coordinates must be single-precision floating-point numbers.
* nextPts output vector of 2D points (with single-precision floating-point coordinates) containing the calculated new positions of input features in the second image; when OPTFLOW_USE_INITIAL_FLOW flag is passed, the vector must have the same size as in the input.
* status output status vector (of unsigned chars); each element of the vector is set to 1 if the flow for the corresponding features has been found, otherwise, it is set to 0.
* err output vector of errors; each element of the vector is set to an error for the corresponding feature, type of the error measure can be set in flags parameter; if the flow wasn't found then the error is not defined (use the status parameter to find such cases).
*/
Video.calcOpticalFlowPyrLK(matOpFlowPrev, matOpFlowThis, mMOP2fptsPrev, mMOP2fptsThis, mMOBStatus, mMOFerr);
//if (mMOBStatus.rows() > 0)
//{
// List<Point> cornersPrev = mMOP2fptsPrev.toList();
// List<Point> cornersThis = mMOP2fptsThis.toList();
// List<byte> byteStatus = mMOBStatus.toList();
// int x = 0;
// int y = byteStatus.Count - 1;
// for (x = 0; x < y; x++)
// {
// if (byteStatus[x] == 1)
// {
// Point pt = cornersThis[x];
// Point pt2 = cornersPrev[x];
// Imgproc.circle(rgbaMat, pt, 5, colorRed, iLineThickness - 1);
// Imgproc.line(rgbaMat, pt, pt2, colorRed, iLineThickness);
// }
// }
//}
// Imgproc.putText (rgbaMat, "W:" + rgbaMat.width () + " H:" + rgbaMat.height () + " SO:" + Screen.orientation, new Point (5, rgbaMat.rows () - 10), Imgproc.FONT_HERSHEY_SIMPLEX, 1.0, new Scalar (255, 255, 255, 255), 2, Imgproc.LINE_AA, false);
Utils.fastMatToTexture2D(rgbaMat, texture);
if (DateTime.Now >= dataAtual.AddSeconds(5))
{
webCamTextureToMatHelper.Pause();
TakeSnapshot();
DetectShapes();
dataAtual = DateTime.Now;
webCamTextureToMatHelper.Play();
}
}
}