OpenCV 线性混合（4）

 

带滚动条的线性混合示例：

 

#include "stdafx.h" #include<iostream> #include<thread> #include<vector> #include <opencv2/core/core.hpp> #include <opencv2/contrib/contrib.hpp> #include <opencv2/highgui/highgui.hpp> #include <opencv2/imgproc/imgproc.hpp> #include <opencv2/objdetect/objdetect.hpp>   using namespace cv; using namespace std;   int g_slider_position = 0; double alpha = 0.5; double beta; Mat src1, src2, dst;   void onTrackingbarSlide(int pos) {     alpha = (double)pos / 100;     beta = (1.0 - alpha);     addWeighted(src1, alpha, src2, beta, 0.0, dst);     imshow("Linear Blend", dst); }   int _tmain(int argc, _TCHAR* argv[]) {     double input;       /// 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("E:\\myImage\\sql.png");     src2 = imread("E:\\myImage\\network26.png");       if (!src1.data) { printf("Error loading src1 \n"); return -1; }     if (!src2.data) { printf("Error loading src2 \n"); return -1; }       /// Create Windows     namedWindow("Linear Blend", 1);       cvCreateTrackbar("Linear Blend", "Linear Blend", &g_slider_position, 100, onTrackingbarSlide);       beta = (1.0 - alpha);     addWeighted(src1, alpha, src2, beta, 0.5, dst);       imshow("Linear Blend", dst);       waitKey(0);     return 0; }

 

 

原文：http://www.opencv.org.cn/opencvdoc/2.3.2/html/doc/tutorials/core/adding_images/adding_images.html#adding-images