/// <summary>
/// Initializes the detector for single marker detection.
/// </summary>
/// <param name="width">The width of the buffer that will be used for detection.</param>
/// <param name="height">The height of the buffer that will be used for detection.</param>
/// <param name="nearPlane">The near view plane of the frustum.</param>
/// <param name="farPlane">The far view plane of the frustum.</param>
/// <param name="markers">A list of markers that should be detected.</param>
/// <param name="bufferType">The type of the buffer.</param>
/// <param name="adaptive">Performs an adaptive bitmap thresholding if set to true. Default = false.</param>
protected void Initialize(int width, int height, double nearPlane, double farPlane, IList <Marker> markers, int bufferType, bool adaptive = false)
{
// Check arguments
if (markers == null || !markers.Any())
{
throw new ArgumentNullException("markers");
}
// Member init
this.bufferWidth = width;
this.bufferHeight = height;
this.isAdaptive = adaptive;
// Init pattern matchers with markers and check segment size, whcih has to be equal for all markers
int segmentX = markers[0].SegmentsX;
int segmentY = markers[0].SegmentsY;
var patternMatchers = new List <PatternMatcher>(markers.Count);
foreach (var marker in markers)
{
if (marker.SegmentsX != segmentX || marker.SegmentsY != segmentY)
{
throw new ArgumentException("The Segment size has to be equal for all markers. Don't mix 16x16 and 32x32 markers for example.", "markers");
}
patternMatchers.Add(new PatternMatcher(marker));
}
// Load deafult camera calibration data
var asmName = new System.Reflection.AssemblyName(System.Reflection.Assembly.GetExecutingAssembly().FullName).Name;
var streamResInfoCam = Application.GetResourceStream(new Uri(asmName + ";component/data/Camera_Calibration_Default.dat", UriKind.Relative));
var cameraParameters = new NyARParam();
using (var cameraCalibrationDataStream = streamResInfoCam.Stream)
{
cameraParameters.loadARParam(cameraCalibrationDataStream);
cameraParameters.changeScreenSize(width, height);
}
// Get projection matrix from camera calibration data
this.Projection = cameraParameters.GetCameraFrustumRH(nearPlane, farPlane);
// Init detector and necessary data
var colorPattern = new NyARColorPatt_Perspective_O2(segmentX, segmentY, 4, 25);
var patternMatchDeviationData = new NyARMatchPattDeviationColorData(segmentX, segmentY);
this.squareDetector = new NyARSquareContourDetector_Rle(cameraParameters.getScreenSize());
this.squareDetectionListener = new SquareDetectionListener(patternMatchers, cameraParameters, colorPattern, patternMatchDeviationData);
// Init buffer members
this.filteredBuffer = new NyARBinRaster(width, height);
if (adaptive)
{
this.bufferFilter = new NyARRasterFilter_AdaptiveThreshold(bufferType);
}
else
{
this.bufferFilter = new NyARRasterFilter_ARToolkitThreshold(this.Threshold, bufferType);
}
}
