void Start()
{
srcMat = Imgcodecs.imread(Application.dataPath + "/Textures/lena.jpg", 1); //512,512
Imgproc.cvtColor(srcMat, srcMat, Imgproc.COLOR_BGR2RGB);
Texture2D t2d = new Texture2D(srcMat.width(), srcMat.height());
Utils.matToTexture2D(srcMat, t2d);
Sprite sp = Sprite.Create(t2d, new UnityEngine.Rect(0, 0, t2d.width, t2d.height), Vector2.zero);
m_srcImage.sprite = sp;
m_srcImage.preserveAspect = true;
m_srcImage.rectTransform.offsetMin = new Vector2(0, 0);
m_srcImage.rectTransform.offsetMax = new Vector2(t2d.width, t2d.height);
m_srcImage.rectTransform.anchoredPosition = Vector2.zero;
//--------------------------------------------------//
dstMat = Imgcodecs.imread(Application.dataPath + "/Textures/0.jpg", 1); //500,500
Imgproc.cvtColor(dstMat, dstMat, Imgproc.COLOR_BGR2RGB);
//dstMat = new Mat();
Mat grayMat = new Mat();
detected_edges = new Mat();
double threshold1 = 1;
double threshold2 = 100;
int kernel_size = 3;
//使用 3x3内核降噪
Imgproc.cvtColor(srcMat, grayMat, Imgproc.COLOR_RGB2GRAY);
Imgproc.blur(grayMat, detected_edges, new Size(3, 3));
Imgproc.Canny(detected_edges, detected_edges, threshold1, threshold2, kernel_size, false);
//使用 Canny算子输出边缘作为掩码显示原图像
//dstMat.setTo(new Scalar(0));
Imgproc.resize(dstMat, dstMat, srcMat.size());
//srcMat.copyTo(dstMat, detected_edges); //保证srcMat,dstMat是一样大的
//左.copyTo(中, 右); //左作为像素源，右作为mask，合成到中
OpenCVForUnity.Rect rect = new OpenCVForUnity.Rect(25, 25, 125, 200);
srcMat.submat(rect).copyTo(dstMat);
Texture2D dst_t2d = new Texture2D(dstMat.width(), dstMat.height());
Utils.matToTexture2D(dstMat, dst_t2d);
Sprite dst_sp = Sprite.Create(dst_t2d, new UnityEngine.Rect(0, 0, dst_t2d.width, dst_t2d.height), Vector2.zero);
m_dstImage.sprite = dst_sp;
m_dstImage.preserveAspect = true;
m_dstImage.rectTransform.offsetMin = new Vector2(0, 0);
m_dstImage.rectTransform.offsetMax = new Vector2(dst_t2d.width, dst_t2d.height);
m_dstImage.rectTransform.anchoredPosition = Vector2.zero;
}
void Start()
{
srcMat = Imgcodecs.imread(Application.dataPath + "/Textures/lena.jpg", 1); //512,512
Imgproc.cvtColor(srcMat, srcMat, Imgproc.COLOR_BGR2RGB);
logoMat = Imgcodecs.imread(Application.dataPath + "/Textures/head.png", 1);
Imgproc.cvtColor(logoMat, logoMat, Imgproc.COLOR_BGR2RGB);
Mat ROI = srcMat.submat(new Rect(20, 20, logoMat.cols(), logoMat.rows()));
logoMat.copyTo(ROI);//logo复制到ROI上面
Texture2D t2d = new Texture2D(srcMat.width(), srcMat.height());
Utils.matToTexture2D(srcMat, t2d);
Sprite sp = Sprite.Create(t2d, new UnityEngine.Rect(0, 0, t2d.width, t2d.height), Vector2.zero);
m_srcImage.sprite = sp;
m_srcImage.preserveAspect = true;
m_srcImage.rectTransform.offsetMin = new Vector2(0, 0);
m_srcImage.rectTransform.offsetMax = new Vector2(t2d.width, t2d.height);
m_srcImage.rectTransform.anchoredPosition = Vector2.zero;
}