projectPoints(tempPointSet, rvecsMat[i], tvecsMat[i], cameraMatrix, distCoeffs, image_points2); /* 计算新的投影点和旧的投影点之间的误差*/ vector<Point2f> tempImagePoint = image_points_seq[i]; Mat tempImagePointMat = Mat(1, tempImagePoint.size(), CV_32FC2); Mat image_points2Mat = ...
gray,Imgproc.COLOR_BGR2GRAY);// 边缘检测Matedges=newMat();Imgproc.Canny(gray,edges,50,150);// 轮廓提取List<MatOfPoint>contours=newArrayList<>();Imgproc.findContours(edges,contours,newMat(),Imgproc.RETR_EXTERNAL,Imgproc.CHAIN_APPROX_SIMPLE);...
import org.opencv.core.Core; import org.opencv.core.CvType; import org.opencv.core.Mat; public class HelloCv { public static void main(String[] args) throws Exception { System.loadLibrary(Core.NATIVE_LIBRARY_NAME); // ① Mat hello = Mat.eye(3,3, CvType.CV_8UC1); // ② System.out....
Imgproc.findContours(binImg,contourList,new Mat(), Imgproc.RETR_EXTERNAL, Imgproc.CHAIN_APPROX_SIMPLE); for(int i=0;i<contourList.size();i++){ MatOfPoint2f point = new MatOfPoint2f(); point.fromList(contourList.get(i).toList()); MatOfPoint2f approxCurve = new MatOfPoint2f(); ...
// 创建一个新的 Mat对象,用于存放交集图 Mat imgUnion = new Mat(); // 使用 opencv Core中的交集方法,第一个、第二个参数是用来求交集的 Mat图,第三个参数是存储交集图的对象 Core.bitwise_or(imgErode, imgFloodBitWise, imgUnion); // 展示交集图 ...
public Point[] toArray();方法在两个类的。 你可以跳回来 /// Source variable MatOfPoint SrcMtx;/// New variable MatOfPoint2f NewMtx = new MatOfPoint2f( SrcMtx.toArray() );+ Imgproc.findContours(gray, contours, new Mat(), Imgproc.RETR_LIST, Imgproc.CHAIN_APPROX_SIMPLE);...
我在尝试使用java openCV 识别条形码。在花边框时却这样。 我初步判断是,计算面积出现问题。 System.out.println("Welcome to OpenCV "+Core.VERSION); Mat m = new Mat(5,10, CvType.CV_8UC1,new Scalar(0)); System.out.println("OpenCV:"+m); Mat srcImage = Imgcodecs.imread("C:\\Users\\13543...
再用opencv提供的findContours函数,寻找图像的轮廓,从中间结果种,找到最大的轮廓,就是我们图像的最外面的轮廓 /** * 返回边缘检测之后的最大矩形,并返回 * * @param cannyMat * Canny之后的mat矩阵 * @return */ public static RotatedRect findMaxRect(Mat cannyMat) { ...
java调用opencv轮廓检测 FindContours 显示最大轮廓 网络异常,图片无法展示 | public static void testFindContours(Mat image) {//高斯滤波Imgproc.GaussianBlur(image, image, new Size(3, 3), 0, 0);Imgproc.cvtColor(image, image,Imgproc.COLOR_BGR2GRAY);//一般来说,高阈值maxVal推荐是低阈值minVal的2~3...
opencv.core.CvType; import org.opencv.core.Mat; import org.opencv.core.Scalar; public class Test01 { static { System.loadLibrary(Core.NATIVE_LIBRARY_NAME); } public static void main(String[] args) { System.out.println("Welcome to OpenCV " + Core.VERSION); Mat m = new Mat(5, 10, ...