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功能简述:
在原始图片上定义一个ROI,并插入logo图片到该区域。
代码如下:
#include <opencv2/opencv.hpp>
#include <iostream>
int main(int argc, char** argv) {
cv::Mat src, dst,logo;
src = cv::imread("D:/VS2015_Projects/opencv_workspace/img/opencvtest.jpg");
logo = cv::imread("D:/VS2015_Projects/opencv_workspace/img/ya.jpg");
if(src.empty())
{
std::cout << "src load failed!" << std::endl;
return -1;
}
if(logo.empty())
{
std::cout << "logo load failed!" << std::endl;
return -1;
}
imshow("input image", src);
//在图片右下角创建一个感兴趣区域
cv::Mat imageROI(src, cv::Rect(src.cols-logo.cols, src.rows-logo.rows, //ROI坐标
logo.cols, logo.rows)); //ROI大小
//插入logo
logo.copyTo(imageROI);
imshow("output image", src);
cv::waitKey(0);
return 0;
}
效果如下: