/// <summary>
/// Detects and outlines faces in the WebcamTexture and stored as a Mat.
/// Optionally equalizes and denoises WebcamTexture.
/// </summary>
public void UpdateFaceTexture()
{
if (webcamController.DidUpdateThisFrame())
{
Mat rgbaMat = webcamController.WebcamMat;
Imgproc.cvtColor(rgbaMat, grayscale, Imgproc.COLOR_RGB2GRAY);
Imgproc.equalizeHist(grayscale, grayscale);
if (cascade != null)
{
cascade.detectMultiScale(grayscale, faces, 1.1, 2, 2,
new Size(grayscale.cols() * 0.2, grayscale.rows() * 0.2), new Size());
}
faceLocations = faces.toArray();
if (DenoiseTexture)
{
Photo.fastNlMeansDenoising(grayscale, grayscale);
}
for (int i = 0; i < faceLocations.Length; i++)
{
if (EqualizeTexture)
{
Imgproc.rectangle(grayscale, new Point(faceLocations[i].x, faceLocations[i].y), new Point(faceLocations[i].x + faceLocations[i].width, faceLocations[i].y + faceLocations[i].height), new Scalar(255, 255, 255, 255), 5);
}
else
{
Imgproc.rectangle(rgbaMat, new Point(faceLocations[i].x, faceLocations[i].y), new Point(faceLocations[i].x + faceLocations[i].width, faceLocations[i].y + faceLocations[i].height), new Scalar(255, 255, 255, 255), 5);
}
}
if (EqualizeTexture)
{
Utils.matToTexture2D(grayscale, faceTexture, webcamController.Colors);
}
else
{
Utils.matToTexture2D(rgbaMat, faceTexture, webcamController.Colors);
}
}
}
