2016-05-05 81 views
1

我正在尋找漢明距離幫助下的視頻差異。這裏是我的代碼:OpenCV.norm中的聲明錯誤

#include <iostream> 
#include "opencv2/opencv.hpp" 
using namespace cv; 
int main(int argc, char** argv) 
{ 
    char const* filename = ("video.mp4"); 
    VideoCapture video(filename); 
    Mat frame, temp; 
    for(unsigned int i = 0; i<100; i++) 
    { 
     video >> frame; 
     if (i > 0) 
     { 
      double dist = norm(frame, temp, NORM_HAMMING); 
      cout<<"Dist= "<< dist <<endl; 
     } 
     temp = frame; 
    } 
    return 0; 
} 

的問題是,在

double dist = norm(frame, temp, NORM_HAMMING); 

程序降至

**OpenCV Error**: Assertion failed (normType == NORM_INF || normType == NORM_L1 || normType == NORM_L2 || normType == NORM_L2SQR || ((normType == NORM_HAMMING || normType == NORM_HAMMING2) && src1.type() == CV_8U))in norm, in file /home/andrio/.local/share/Trash/files/build/OpenCV/modules/core/src/stat.cpp, line 3123 terminate called after throwing an instance of 'cv::Exception' what(): /home/andre/.local/share/Trash/files/build/OpenCV/modules/core/src/stat.cpp:3123: error: (-215) normType == NORM_INF || normType == NORM_L1 || normType == NORM_L2 || normType == NORM_L2SQR || ((normType == NORM_HAMMING || normType == NORM_HAMMING2) && src1.type() == CV_8U) in function norm 

UPD:此代碼的工作:

double dist = norm(frame, temp, NORM_L2); 
+0

那麼,當您調用該函數時,「幀」矩陣的數據類型是什麼?實際上是否有任何圖像加載?在將其作爲參數傳遞給其他函數之前,您不會嘗試進行驗證。 –

+0

frame.type()和temp.type()輸出爲16.這裏[OpenCV](http://docs.opencv.org/2.4/modules/core/doc/operations_on_arrays.html)沒有說明應該是什麼一個數組類型。 –

回答

1

您需要將圖像變爲灰色

cvtColor(frame, frame, CV_BGR2GRAY);