閱讀和處理圖像（opencv/c + +）

Question

我的項目是從圖像識別面孔。這些圖像具有相同的名稱和更改偶爾
所以我想加載和每次處理圖像他們改變
我怎麼能修改此：

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

對不起，我的英語

Answer 1

好吧，讓我們假設你的圖像在他們改變的時刻是不同的（隨機）。我們如何檢測到它是另一幅與前一幅不同的圖像？

我們要提取圖像的3個功能，它是：紅色通道，綠色通道，藍色通道（這是一個向量）的平均值。所以，如果圖像是相同的，3種手段是相同的，但如果它不同，圖像已被改變。

所以想我們是在一個無限循環（您while）。

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

我們行嗎？因此，這是代碼：

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; 



     } 

    }