Added the HoloLensArUcoCameraCalibrationExample.

Modified it to correspond to the WSA API of the new Unity version.

Author: EnoxSoftware

Assets/HoloLensWithOpenCVForUnityExample/HoloLensArUcoExample/CameraParameters.cs

@@ -0,0 +1,63 @@
+using UnityEngine;
+using System;
+using OpenCVForUnity;
+
+namespace HoloLensWithOpenCVForUnityExample
+{
+    [System.Serializable]
+    public struct CameraParameters
+    {
+        public string calibration_date; 
+        public int frames_count;
+        public int image_width;
+        public int image_height;
+        public int calibration_flags;
+        public double[] camera_matrix;
+        public double[] distortion_coefficients;
+        public double avg_reprojection_error;
+
+        public CameraParameters (int frames_count, int image_width, int image_height, int calibration_flags, double[] camera_matrix, double[] distortion_coefficients, double avg_reprojection_error)
+        {
+            this.calibration_date = DateTime.Now.ToString ();
+            this.frames_count = frames_count;
+            this.image_width = image_width;
+            this.image_height = image_height;
+            this.calibration_flags = calibration_flags;
+            this.camera_matrix = camera_matrix;
+            this.distortion_coefficients = distortion_coefficients;
+            this.avg_reprojection_error = avg_reprojection_error;
+        }
+
+        public CameraParameters (int frames_count, int image_width, int image_height, int calibration_flags, Mat camera_matrix, Mat distortion_coefficients, double avg_reprojection_error)
+        {
+            double[] camera_matrixArr = new double[camera_matrix.total()];
+            camera_matrix.get (0, 0, camera_matrixArr);
+
+            double[] distortion_coefficientsArr = new double[distortion_coefficients.total()];
+            distortion_coefficients.get (0, 0, distortion_coefficientsArr);
+
+            this.calibration_date = DateTime.Now.ToString ();
+            this.frames_count = frames_count;
+            this.image_width = image_width;
+            this.image_height = image_height;
+            this.calibration_flags = calibration_flags;
+            this.camera_matrix = camera_matrixArr;
+            this.distortion_coefficients = distortion_coefficientsArr;
+            this.avg_reprojection_error = avg_reprojection_error;
+        }
+
+        public Mat GetCameraMatrix ()
+        {
+            Mat m = new Mat (3, 3, CvType.CV_64FC1);
+            m.put (0, 0, camera_matrix);
+            return m;
+        }
+
+        public Mat GetDistortionCoefficients ()
+        {
+            Mat m = new Mat (distortion_coefficients.Length, 1, CvType.CV_64FC1);
+            m.put (0, 0, distortion_coefficients);
+            return m;
+        }
+    }
+}