1 /** 2 * @file AddingImages.cpp 3 * @brief Simple linear blender ( dst = alpha*src1 + beta*src2 ) 4 * @author OpenCV team 5 */ 6 7 #include "opencv2/imgcodecs.hpp" 8 #include "opencv2/highgui/highgui.hpp" 9 #include <iostream> 10 11 using namespace cv; 12 13 /** 14 * @function main 15 * @brief Main function 16 */ 17 int main( void ) 18 { 19 20 double alpha = 0.5; double beta; double input; 21 22 Mat src1, src2, dst; 23 24 /// Ask the user enter alpha 25 std::cout<<" Simple Linear Blender "<<std::endl; 26 std::cout<<"-----------------------"<<std::endl; 27 std::cout<<"* Enter alpha [0-1]: "; 28 std::cin>>input; 29 30 // We use the alpha provided by the user iff it is between 0 and 1 31 if( alpha >= 0 && alpha <= 1 ) 32 { alpha = input; } 33 34 /// Read image ( same size, same type ) 35 src1 = imread("../data/LinuxLogo.jpg"); 36 src2 = imread("../data/WindowsLogo.jpg"); 37 38 if( src1.empty() ) { std::cout<< "Error loading src1"<<std::endl; return -1; } 39 if( src2.empty() ) { std::cout<< "Error loading src2"<<std::endl; return -1; } 40 41 /// Create Windows 42 namedWindow("Linear Blend", 1); 43 44 beta = ( 1.0 - alpha ); 45 addWeighted( src1, alpha, src2, beta, 0.0, dst); 46 47 imshow( "Linear Blend", dst ); 48 49 50 waitKey(0); 51 return 0; 52 } 53
