vector<double>area;//用于储存所以轮廓的面积findContours(binary,contours,hierachy,RETR_EXTERNAL,CHAIN_APPROX_SIMPLE);// 提取最外层轮廓area.clear();for(inti=0;i<contours.size();++i){area.push_back(contourArea(contours[i]));}intmaxPosition=max_element(area.begin(),area.end())-area.begin();/...
为每个操作创建两组轨道栏://3.1、第一个轨道栏“Element”返回erosion_elem或dilation_elemcreateTrackbar("卷积核类型",dilate_Win,&dilate_elem,max_elem,Dilation);//3.2、第二个轨道栏“内核大小”返回相应操作的erosion_size或dilation_size。
box[i]=minAreaRect(Mat(contours[i]));//计算每个轮廓最小外接矩形if(box[i].size.width<50||box[i].size.height<50)continue;//计算轮廓极值点Point extLeft=*min_element(contours[i].begin(),contours[i].end(),[](constPoint&lhs,constPoint&rhs){returnlhs.x<rhs.x;});Point extRight=*ma...
iHighS, iHighV), imgThresholded);//图像的范围imshow("Thresholded", imgThresholded);//开操作 (去除一些噪点)Mat element = getStructuringElement(MORPH_RECT, Size(5,5));//morphologyEx(imgThresholded, imgThresholded, MORPH_OPEN, element);//闭操作 (连接一些连通域)morphologyEx(imgThresholded...
so the black and white image is also called grayscale image.The value of the gray-scale image matrix element is usually [0,255], so its data type is generally an 8-bit unsigned integer, which is commonly referred to as the 256-level gray-scale.The transformation of grayscale image into...
int const max_kernel_size = 21; char text[] = "Element: 0:Rect 1:Coss 2:Ellipse"; void Erosion(int ,void*) { int erosion_type = 0; if (erosion_elem == 0) { erosion_type = MORPH_RECT; // 创建的核形状,矩形 } if (erosion_elem == 1) { ...
The method returns a matrix element type. This is an identifier compatible with the CvMat type system, like CV_16SC3 or 16-bit signed 3-channel array, and so on. 至此,知道了 函数,下一步更关键的就是返回值和具体类型之间的对应关系了。文章《[LIST OF MAT TYPE IN OPENCV][LIST OF MAT TYP...
轮廓的每个像素findContours(mask, contour, hierarchy, RETR_EXTERNAL, CHAIN_APPROX_NONE);drawContours(mask, contour, -1, Scalar(255), FILLED,4);// 闭运算cv::Mat element = getStructuringElement(MORPH_ELLIPSE, Size(5, 5));cv::morphologyEx(mask, mask, MORPH_CLOSE, element);// 掩膜滤波,是...
data; int num_classes = cols - 5; for(int i = 0; i < rows; ++i) { float* pitem = predict + i * cols; float objness = pitem[4]; if (objness < confidence_threshold_) { continue; } float* pclass = pitem + 5; int label = std::max_element(pclass, pclass + num_...
#include"opencv2/opencv.hpp"using namespace std; using namespace cv;//建立三个函数分别来处理三个投影voidHProjection(Matmat) {Mathmat; hmat.create(mat.rows, mat.cols,CV_32F);//存储方式不同IplImagepmat(mat),phmat(hmat);//初始化图像的像素值为255for(int i =0; i<phmat.height; i++...