advancedskrald/ChessAR/Assets/OpenCVForUnity/Examples/MainModules/features2d/Feature2DExample/Feature2DExample.cs

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using UnityEngine;
using UnityEngine.SceneManagement;
using System.Collections;
using OpenCVForUnity.CoreModule;
using OpenCVForUnity.ImgprocModule;
using OpenCVForUnity.Features2dModule;
using OpenCVForUnity.UnityUtils;
namespace OpenCVForUnityExample
{
/// <summary>
/// Feature2D Example
/// An example of descriptor extraction and descriptor matching.
/// http://docs.opencv.org/3.1.0/d5/dde/tutorial_feature_description.html
/// </summary>
public class Feature2DExample : MonoBehaviour
{
// Use this for initialization
void Start ()
{
Texture2D imgTexture = Resources.Load ("lena") as Texture2D;
Mat img1Mat = new Mat (imgTexture.height, imgTexture.width, CvType.CV_8UC3);
Utils.texture2DToMat (imgTexture, img1Mat);
Debug.Log ("img1Mat.ToString() " + img1Mat.ToString ());
Mat img2Mat = new Mat (imgTexture.height, imgTexture.width, CvType.CV_8UC3);
Utils.texture2DToMat (imgTexture, img2Mat);
Debug.Log ("img2Mat.ToString() " + img2Mat.ToString ());
float angle = UnityEngine.Random.Range (0, 360), scale = 1.0f;
Point center = new Point (img2Mat.cols () * 0.5f, img2Mat.rows () * 0.5f);
Mat affine_matrix = Imgproc.getRotationMatrix2D (center, angle, scale);
Imgproc.warpAffine (img1Mat, img2Mat, affine_matrix, img2Mat.size ());
ORB detector = ORB.create ();
ORB extractor = ORB.create ();
MatOfKeyPoint keypoints1 = new MatOfKeyPoint ();
Mat descriptors1 = new Mat ();
detector.detect (img1Mat, keypoints1);
extractor.compute (img1Mat, keypoints1, descriptors1);
MatOfKeyPoint keypoints2 = new MatOfKeyPoint ();
Mat descriptors2 = new Mat ();
detector.detect (img2Mat, keypoints2);
extractor.compute (img2Mat, keypoints2, descriptors2);
DescriptorMatcher matcher = DescriptorMatcher.create (DescriptorMatcher.BRUTEFORCE_HAMMINGLUT);
MatOfDMatch matches = new MatOfDMatch ();
matcher.match (descriptors1, descriptors2, matches);
Mat resultImg = new Mat ();
Features2d.drawMatches (img1Mat, keypoints1, img2Mat, keypoints2, matches, resultImg);
Texture2D texture = new Texture2D (resultImg.cols (), resultImg.rows (), TextureFormat.RGBA32, false);
Utils.matToTexture2D (resultImg, texture);
gameObject.GetComponent<Renderer> ().material.mainTexture = texture;
}
// Update is called once per frame
void Update ()
{
}
/// <summary>
/// Raises the back button click event.
/// </summary>
public void OnBackButtonClick ()
{
SceneManager.LoadScene ("OpenCVForUnityExample");
}
}
}