opencv split和merge操作

#include<opencv2/opencv.hpp>
#include<iostream>
#include<cassert>
#include<vector>
using namespace cv;
using namespace std;
int main()
{
Mat srcImage=imread("e:/huangshan.jpg");
Mat imageBlue,imageGreen,imageRed;
Mat mergeImage;
//定义一个Mat向量容器保存拆分后的数据
vector<Mat> channels;

//判断文件加载是否正确
assert(srcImage.data!=NULL);
namedWindow("image",CV_WINDOW_AUTOSIZE);
namedWindow("mergeImage",CV_WINDOW_AUTOSIZE);

//通道的拆分
split(srcImage,channels);

//提取蓝色通道的数据
imageBlue = channels.at(0);

//提取绿色通道的数据
imageGreen = channels.at(1);

//提取红色通道的数据
imageRed = channels.at(2);
imshow("image",imageBlue);

//对拆分的通道数据合并
merge(channels,mergeImage);
imshow("mergeImage",mergeImage);
waitKey();
system("pause");
return 0;
}

#include<opencv2/opencv.hpp>
#include<iostream>
#include<cassert>
#include<vector>
using namespace cv;
using namespace std;
int main()
{
Mat srcImage=imread("e:/jiansheng.jpg");
Mat logoImage = imread("e:/timu.jpg",0);
Mat imageBlue,imageGreen,imageRed;
Mat mergeImage;
//定义一个Mat向量容器保存拆分后的数据
vector<Mat> channels;

//判断文件加载是否正确
assert(srcImage.data!=NULL && logoImage.data!=NULL);
//namedWindow("image",CV_WINDOW_AUTOSIZE);
namedWindow("mergeImage",CV_WINDOW_AUTOSIZE);

//通道的拆分
split(srcImage,channels);

//提取蓝色通道的数据
imageBlue = channels.at(1);
addWeighted(imageBlue(Rect(0,0,logoImage.cols,logoImage.rows)),0.5,logoImage,0.5,0.,imageBlue(Rect(0,0,logoImage.cols,logoImage.rows)));

//对拆分的通道数据合并
merge(channels,mergeImage);
imshow("mergeImage",mergeImage);
waitKey();
system("pause");
return 0;
}

#include<opencv2/opencv.hpp>
#include<iostream>
#include<vector>
using namespace std;
using namespace cv;
int main()
{
Mat img = imread("f:/huang.jpg");
namedWindow("image",WINDOW_AUTOSIZE);
imshow("image",img);
Mat gray;
cvtColor(img,gray,CV_RGB2GRAY);
namedWindow("gray",WINDOW_AUTOSIZE);
imshow("gray",gray);
Mat mimg = imread("f:/mei.jpeg");
namedWindow("mei",WINDOW_AUTOSIZE);
resize(mimg,mimg,Size(img.cols,img.rows));
addWeighted(mimg,0.2,img,0.9,0.,mimg);
imshow("mei",mimg);
vector<Mat> channels;
split(img,channels);
vector<Mat>::iterator it = channels.begin();
char str[][20]={"blue","green","red"};
int i=0;
for(;it!=channels.end();++it,++i)
{

namedWindow(str[i],WINDOW_AUTOSIZE);
imshow(str[i],*it);
}
waitKey();
return 0;
}