阅读和处理图像（opencv/c + +）

Question

我的项目是从图像识别面孔。这些图像具有相同的名称和更改偶尔
所以我想加载和每次处理图像他们改变
我怎么能修改此：

while (image==NULL) { 
    image = cvLoadImage("ayman.jpg", 1); 
} 
cout << endl << "My image was finally loaded!";  

对不起，我的英语

Answer 1

好吧，让我们假设你的图像在他们改变的时刻是不同的（随机）。我们如何检测到它是另一幅与前一幅不同的图像？

我们要提取图像的3个功能，它是：红色通道，绿色通道，蓝色通道（这是一个向量）的平均值。所以，如果图像是相同的，3种手段是相同的，但如果它不同，图像已被改变。

所以想我们是在一个无限循环（您while）。

while(true) { 
    // we are going to say here if the image has changed or not 
} 

我们行吗？因此，这是代码：

image = cvLoadImage("ayman.jpg", 1); 
    Scalar meanOfImage = mean(image); 

    while (true) { 
     Scalar meanAtThisMoment = mean(image); 
     // This are the three features (it's in real one, but one vector of 3). 
     // We are going to compare the three to be more clear. 
     if (meanAtThisMoment[0] == meanOfImage[0] 
      && 
      meanAtThisMoment[1] == meanOfImage[1] 
      && 
      meanAtThisMoment[2] == meanOfImage[2]) { 

      cout << endl << "The image hasn't been changed yet."; 
      image = cvLoadImage("ayman.jpg", 1); // added!! forgot this, sorry 
     } else { 

      cout << endl << "The image has been changed!!!"; 
      // and now we set the meanOfImage (the main mean) of the new image to compare with the future images. 

      meanOfImage = meanAtThisMoment; 



     } 

    }