opencv split和merge操作

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#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;}

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