threshold
通常用来筛选符合有个值域内的信息
![(https://img-blog.csdnimg.cn/20190708202926204.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjIzNzYxNQ==,size_16,color_FFFFFF,t_70)
#include <opencv2/opencv.hpp>using namespace std;using namespace cv;int main(){Mat src = imread("D:/Teach_turials/learnopencv/Threshold/threshold.jpg",0);imshow("0", src);Mat dst;threshold(src, dst, 0, 255, THRESH_BINARY);imwrite("opencv_threshold-example.jpg", dst);threshold(src, dst, 0, 128, THRESH_BINARY);imwrite("opencv_thresh_binary-maxval.jpg",dst);threshold(src, dst, 127, 255, THRESH_BINARY);imwrite("opencv_thresh-binary.jpg", dst);threshold(src, dst, 127, 255, THRESH_BINARY_INV);imwrite("opencv_thresh-binary-inv.jpg", dst);threshold(src, dst, 127, 255, THRESH_TRUNC);imwrite("opencv_thresh-trunc.jpg", dst);threshold(src, dst, 127, 255, THRESH_TOZERO);imwrite("opencv_thresh-tozero.jpg", dst);threshold(src, dst, 127, 255, THRESH_TOZERO_INV);imwrite("opencv_thresh-to-zero-inv.jpg", dst);}
windows中，绝对路径用/表示
windows中，绝对路径用/表示 windows中，绝对路径用/表示