1) /** * @file AddingImages.cpp * @brief Simple linear blender ( dst = alpha*src1 + beta*src2 ) * @author OpenCV team */ #include "opencv2/imgcodecs.hpp" #include "opencv2/highgui.hpp" #include <iostream> using namespace cv; // we're NOT "using namespace std;" here, to avoid collisions between the beta variable and std::beta in c++17 using std::cin; using std::cout; using std::endl; /** * @function main * @brief Main function */ int main( void ) { double alpha = 0.5; double beta; double input; Mat src1, src2, dst; /// Ask the user enter alpha cout << " Simple Linear Blender " << endl; cout << "-----------------------" << endl; cout << "* Enter alpha [0.0-1.0]: "; cin >> input; // We use the alpha provided by the user if it is between 0 and 1 if( input >= 0 && input <= 1 ) { alpha = input; } //![load] /// Read images ( both have to be of the same size and type ) src1 = imread( samples::findFile("LinuxLogo.jpg") ); src2 = imread( samples::findFile("WindowsLogo.jpg") ); //![load] if( src1.empty() ) { cout << "Error loading src1" << endl; return EXIT_FAILURE; } if( src2.empty() ) { cout << "Error loading src2" << endl; return EXIT_FAILURE; } //![blend_images] beta = ( 1.0 - alpha ); addWeighted( src1, alpha, src2, beta, 0.0, dst); //![blend_images] //![display] // imshow( "Linear Blend", dst ); imwrite("aaa.jpg", dst); waitKey(0); //![display] return 0; } 2) 其实就是两张图片相加，由于是Linux，远程，所以改成了保存图片，使用imwrite() 其实也很简单啊 3）效果如下：
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