学步园

typedef struct CvMatND
{
    int type;
    int dims;

    int* refcount;
    int hdr_refcount;

    union
    {
        uchar* ptr;
        float* fl;
        double* db;
        int* i;
        short* s;
    } data;

    struct
    {
        int size;
        int step;
    }
    dim[CV_MAX_DIM];
}
CvMatND;