一起学opencv2 （四） 图片的整合

直接上代码

#include <vector>#include <opencv2/core/core.hpp>#include <opencv2/highgui/highgui.hpp>#include<opencv2/imgproc/imgproc.hpp>void sharpen2D(const cv::Mat &image, cv::Mat &result) {// Construct kernel (all entries initialized to 0)cv::Mat kernel(3, 3, CV_32F, cv::Scalar(0));// assigns kernel valueskernel.at<float>(1, 1) = 5.0;kernel.at<float>(0, 1) = -1.0;kernel.at<float>(2, 1) = -1.0;kernel.at<float>(1, 0) = -1.0;kernel.at<float>(1, 2) = -1.0;//filter the imagecv::filter2D(image, result, image.depth(), kernel);}int main(){cv::Mat image1;cv::Mat image2,image3,result;image1 = cv::imread("bfg.jpg");image3 = cv::imread("sda2.jpg");cv::namedWindow("origin");cv::imshow("origin", image1);//这个2D滤波没搞明白sharpen2D(image1, image2);cv::namedWindow("sharpen");cv::imshow("sharpen", image2);//图片的组合 并设置相应的权重值cv::addWeighted(image1, 0.7, image3, 0.8, 0., result);//dst(I) = saturate(src1(I) * alpha + src2(I) * beta + gamma)   require two imagess of the same sizecv::namedWindow("result");cv::imshow("result", result);//if the two images are of the different size cv::Mat imageROI;cv::Mat logo = cv::imread("logo.bmp");imageROI = image1(cv::Rect(450, 340, logo.cols, logo.rows));//Stores coordinates of a rectangle.截取图image1左上角坐标340*450 长度和宽度与图logo相同，//并将数据以imageROI表示，因此imageROI的数据变化将直接反应到image1的数据变化/*cv::Mat imageROI = image(cv::Range(270, 270 + logo.rows),cv::Range(385, 385 + logo.cols))*/cv::addWeighted(imageROI, 1.0, logo, 0.2, 0., imageROI);cv::namedWindow("imageROI");cv::imshow("imageROI", imageROI);cv::namedWindow("image1 with logo");cv::imshow("image1 with logo", image1);cv::Mat mask = cv::imread("logo.bmp", 0);// copy to ROI with masklogo.copyTo(imageROI,mask);cv::namedWindow("image1 with logo2");cv::imshow("image1 with logo2", image1);cv::waitKey();return 0;}