1.下载Opencv for unity.
2.把OpenCVForUnity下的StreamingAssets拖到Assets下。
3.点击Tools->opencv for unity->set plugin import settings.
4.
using UnityEngine;
using System.Collections;
using OpenCVForUnity;
using System;
using System.Collections.Generic;
public class imageTest : MonoBehaviour {
public Texture2D img;
// Use this for initialization
void Start () {
}
// Update is called once per frame
void Update () {
if (Input.GetKeyDown(KeyCode.A)){
int height = 500;
string imgpath = "/Users/shiyuhuang/Downloads/ATOCAR/ATOCAR_UNITY_2/ATOCAR_UNITY/13.jpg";
Mat imgMat2 = Imgcodecs.imread(imgpath);
Mat imgMat = new Mat ();
int new_w, new_h=500;
double scale = new_h/Convert.ToDouble(imgMat2.rows ());
new_w = Convert.ToInt32 (imgMat2.cols () * scale);
Imgproc.resize (imgMat2, imgMat,new Size( Convert.ToDouble(new_w), Convert.ToDouble(new_h)) );
List<Mat> channels = new List<Mat>();
OpenCVForUnity.Core.split (imgMat,channels);
Mat a = new Mat ();
a = channels [0];
channels [0] = channels [2];
channels [2] = a;
OpenCVForUnity.Core.merge (channels,imgMat);
Debug.Log("您按下了A键"+imgMat.size());
SpriteRenderer spr = gameObject.GetComponent<SpriteRenderer>();
Texture2D texture2d = new Texture2D (new_w, new_h);
Utils.matToTexture2D (imgMat, texture2d);
Sprite sp = Sprite.Create(texture2d,new UnityEngine.Rect(0, 0, new_w, new_h), new Vector2(0.5f,0.5f) );//注意居中显示采用0.5f值
spr.sprite = sp;
// gameObject.GetComponent<Renderer> ().material.mainTexture = texture2d;
// Mat imgMat2 = new Mat (texture2d.height, texture2d.width, CvType.CV_8UC4);
// Utils.texture2DToMat (texture2d, imgMat2);
// Imgcodecs.imwrite ("/Users/shiyuhuang/Downloads/ATOCAR/ATOCAR_UNITY_2/ATOCAR_UNITY/test2.jpg",imgMat2);
}
}
}