OpenCV 线性混合（4）

#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>

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using namespace cv;

using namespace std;

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int g_slider_position = 0;

double alpha = 0.5;

double beta;

Mat src1, src2, dst;

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void onTrackingbarSlide(int pos)

{

????alpha = (double)pos / 100;

????beta = (1.0 - alpha);

????addWeighted(src1, alpha, src2, beta, 0.0, dst);

????imshow("Linear Blend", dst);

}

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int _tmain(int argc, _TCHAR* argv[])

{

????double input;

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????/// 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;

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????/// We use the alpha provided by the user iff it is between 0 and 1

????if (alpha >= 0 && alpha <= 1)

????{

????????alpha = input;

????}

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????/// Read image ( same size, same type )

????src1 = imread("E:\\myImage\\sql.png");

????src2 = imread("E:\\myImage\\network26.png");

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????if (!src1.data) { printf("Error loading src1 \n"); return -1; }

????if (!src2.data) { printf("Error loading src2 \n"); return -1; }

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????/// Create Windows

????namedWindow("Linear Blend", 1);

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????cvCreateTrackbar("Linear Blend", "Linear Blend", &g_slider_position, 100, onTrackingbarSlide);

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????beta = (1.0 - alpha);

????addWeighted(src1, alpha, src2, beta, 0.5, dst);

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????imshow("Linear Blend", dst);

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????waitKey(0);

????return 0;

}