OpenCV笔记(七)

最新推荐文章于 2024-08-24 19:38:18 发布

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腐蚀：将高亮部分缩小

膨胀：将高亮部分扩大

#include<opencv2/opencv.hpp>
#include<opencv2/highgui/highgui.hpp>
#include<iostream>
#define WINDOWNAME "1"
using namespace cv;
using namespace std;
int g_type;

int g_cur;
int g_max;
Mat srcImage;
Mat dstImage;
Mat kernel;
void on_call(int,void*){
	kernel=getStructuringElement(MORPH_RECT,Size(g_cur+1,g_cur+1));//自定义kernel，并防止Size()中参数为0
	if(g_type==0){
		erode(srcImage,dstImage,kernel);
	}else{
		dilate(srcImage,dstImage,kernel);
	}
	imshow(WINDOWNAME,dstImage);
}
int main(){
	srcImage=imread("redflo.bmp",1);
	g_cur=1;
	g_max=20;
	g_type=0;
	namedWindow(WINDOWNAME);//有createTrackbar()时不可省略
	createTrackbar("ero/dil",WINDOWNAME,&g_type,1,on_call);
	createTrackbar("kernel",WINDOWNAME,&g_cur,g_max,on_call);
	on_call(0,NULL);

	waitKey(0);
}

#include<opencv2/opencv.hpp>
#include<opencv2/highgui/highgui.hpp>
#include<iostream>
using namespace cv;
using namespace std;
int main(){
	Mat srcImage=imread("test.jpg",1);
	imshow("src",srcImage);
	Mat dstImage;
	Mat kernel=getStructuringElement(MORPH_RECT,Size(10,10));

	morphologyEx(srcImage,dstImage,MORPH_ERODE,kernel);//腐蚀
	imshow("erode",dstImage);
	morphologyEx(srcImage,dstImage,MORPH_DILATE,kernel);//膨胀
	imshow("dilate",dstImage);
	morphologyEx(srcImage,dstImage,MORPH_CLOSE,kernel);//闭运算，先膨胀后腐蚀
	imshow("close",dstImage);
	morphologyEx(srcImage,dstImage,MORPH_OPEN,kernel);//开运算，先腐蚀后膨胀
	imshow("open",dstImage);
	morphologyEx(srcImage,dstImage,MORPH_BLACKHAT,kernel);//黑帽，闭运算减去原图
	imshow("blackhat",dstImage);	
	morphologyEx(srcImage,dstImage,MORPH_TOPHAT,kernel);//顶帽，原图减去开运算
	imshow("tophat",dstImage);
	morphologyEx(srcImage,dstImage,MORPH_GRADIENT,kernel);//梯度，膨胀减去腐蚀
	imshow("gradient",dstImage);
	waitKey(0);
}