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/**
* @file AddingImages.cpp
* @brief Simple linear blender ( dst = alpha*src1 + beta*src2 )
* @author OpenCV team
*/
#include "opencv2/highgui/highgui.hpp"
#include <iostream>
using namespace cv;
/**
* @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
std::cout<<" Simple Linear Blender "<<std::endl;
std::cout<<"-----------------------"<<std::endl;
std::cout<<"* Enter alpha [0-1]: ";
std::cin>>input;
// We use the alpha provided by the user iff it is between 0 and 1
if( alpha >= 0 && alpha <= 1 )
{ alpha = input; }
/// Read image ( same size, same type )
src1 = imread("../images/LinuxLogo.jpg");
src2 = imread("../images/WindowsLogo.jpg");
if( !src1.data ) { std::cout<< "Error loading src1"<<std::endl; return -1; }
if( !src2.data ) { std::cout<< "Error loading src2"<<std::endl; return -1; }
/// Create Windows
namedWindow("Linear Blend", 1);
beta = ( 1.0 - alpha );
addWeighted( src1, alpha, src2, beta, 0.0, dst);
imshow( "Linear Blend", dst );
waitKey(0);
return 0;
}
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