外贸网站建设推广优化,微网站排版,郑州app软件定制,网站推广活动方案最近有个项目需要做细孔定位和孔距测量#xff0c;需要做边缘检测和轮廓提取#xff0c;先看初步效果图#xff1a; 主要实现代码#xff1a; int MainWindow::Test()
{// 2.9 单个像素长度um 5倍double dbUnit 2.9/(1000*5);// 定义显示窗口namedWindow(src…最近有个项目需要做细孔定位和孔距测量需要做边缘检测和轮廓提取先看初步效果图 主要实现代码 int MainWindow::Test()
{// 2.9 单个像素长度um 5倍double dbUnit 2.9/(1000*5);// 定义显示窗口namedWindow(src, WINDOW_NORMAL|WINDOW_KEEPRATIO);namedWindow(threshold, WINDOW_NORMAL|WINDOW_KEEPRATIO);namedWindow(morphologyEx x1, WINDOW_NORMAL|WINDOW_KEEPRATIO);namedWindow(morphologyEx x2, WINDOW_NORMAL|WINDOW_KEEPRATIO);namedWindow(canny, WINDOW_NORMAL|WINDOW_KEEPRATIO);namedWindow(dst, WINDOW_NORMAL|WINDOW_KEEPRATIO);resizeWindow(src, 1080,720);resizeWindow(threshold, 1080,720);resizeWindow(morphologyEx x1, 1080,720);resizeWindow(morphologyEx x2, 1080,720);resizeWindow(canny, 1080,720);resizeWindow(dst, 1080,720);//【1】载入图像Mat src imread(0.28um5x.jpg); Mat src_clone src.clone();if(src.empty()){qDebug()图片为空;return 1;}imshow(src,src);//【2】转灰度图Mat gray;cvtColor(src,gray,COLOR_BGR2GRAY);//imshow(gray,gray);//【3】图像二值化threshold(gray,gray,130,190,THRESH_BINARY);imshow(threshold,gray);//【4】执行形态学开操作去除噪点Mat kernel getStructuringElement(MORPH_RECT,Size(15,15),Point(-1,-1));morphologyEx(gray,gray,MORPH_CLOSE,kernel,Point(-1,-1),1);imshow(morphologyEx x1,gray);//【4】执行形态学开操作去除噪点Mat kernel1 getStructuringElement(MORPH_RECT,Size(10,10),Point(-1,-1));morphologyEx(gray,gray,MORPH_CLOSE,kernel1,Point(-1,-1),1);imshow(morphologyEx x2,gray);//【5】边缘检测Canny(gray,gray,0,255);imshow(canny,gray);//【6】轮廓发现vectorvectorPoint contours;vectorVec4i her;findContours(gray,contours,her,RETR_TREE,CHAIN_APPROX_SIMPLE);Mat srcImg src;//拟合椭圆fitEllipse(vectorRotatedRect box(contours.size());Point2f rect[4];for (int i 0; icontours.size(); i){Rect rect boundingRect(contours[i]);Point2f pRadius;if(contours[i].size()105){box[i] fitEllipse(Mat(contours[i]));//条件过滤if( box[i].size.aspectRatio()0.8||box[i].size.area()10000000||rect.width300 )continue;float majorAxis std::max(box[i].size.width, box[i].size.height);rectangle(srcImg,rect,Scalar(0, 0, 255));ellipse(srcImg, box[i], Scalar(255, 0, 0), 1, 8);float x rect.width/2.0;float y rect.height/2.0;//【8】找出圆心并绘制pRadiusPoint2f(rect.xx,rect.yy);cv::String det_info cv::format([%d] %.1f,%.1f(%dx%d),%.5f mm, %.5f mm,i,pRadius.x, pRadius.y, rect.width, rect.height,dbUnit*rect.width, dbUnit*majorAxis);cv::Point bbox_points;bbox_points cv::Point(rect.x, rect.y);bbox_points cv::Point(rect.x det_info.size() * 11, rect.y);bbox_points cv::Point(rect.x det_info.size() * 11, rect.y - 15);bbox_points cv::Point(rect.x, rect.y - 15);cv::putText(srcImg, det_info, bbox_points, cv::FONT_HERSHEY_DUPLEX, 0.4, cv::Scalar(255, 255, 255), 1, cv::LINE_AA);circle(srcImg,pRadius,1,Scalar(0,0,255),1);pRadiusbox[i].center;circle(srcImg,pRadius,1,Scalar(255,0,0),1);}}// 绘制结果imshow(dst, srcImg);// 保存结果imwrite(dst.png, srcImg);
}
