讀取二維數組的OpenCV墊

Question

我需要閱讀OpenCV中墊

int main() 
{ 
Mat matrix; 
double **theArray; 
int numOfRows,numOfCols; 

cin >> numOfRows ; 
cin >> numOfCols ; 

theArray = AllocateDynamicArray<double>(numOfRows,numOfCols); 

matrix = Mat(numOfRows,numOfCols,CV_64FC1,&theArray); 

string filename = "IN.xml"; 
FileStorage fs1(filename, FileStorage::WRITE); 
fs1.open(filename, FileStorage::WRITE); 
fs1 << "locsINMat"   << matrix; 
fs1 << "descriptorsINMat" << matrix; 
fs1.release(); 
cout << "---------------------" << endl; 

FreeDynamicArray(theArray); 

} 
template <typename T> 
T **AllocateDynamicArray(int nRows, int nCols) 
{ 
     T **dynamicArray; 

     dynamicArray = new T*[nRows]; 
     for(int i = 0 ; i < nRows ; i++) 
     dynamicArray[i] = new T [nCols]; 

     return dynamicArray; 
} 

template <typename T> 
void FreeDynamicArray(T** dArray) 
{ 
     delete [] *dArray; 
     delete [] dArray; 
} 

動態二維數組我得到這個異常：在GP.exe在0x5d08f1aa 未處理的異常：0000005：訪問衝突讀取位置0x003f4000。

Answer 1

float data[2][5] = {{1,2,3,4,5},{7,8,9,10,11}}; 
A = Mat(2, 5, CV_32FC1, &data); 

不會引發任何錯誤。你的行和列是否正確？

動態內存分配： 我認爲內存分配應做這樣的：

double **theArray; 
theArray= (double**)malloc(numOfRows* sizeof(double*)); 

for(i = 0; i < numOfRows; i++) 
    theArray[i] = (double*)malloc(numOfCols* sizeof(double)); 

在我的例子