CxImage类型与Mat类互转

转自http://blog.youkuaiyun.com/liulina603/article/details/43053957

CxImage转Mat

    CxImage img;
    uint8_t *buf=NULL;
    int32_t len=0;
    bool rs =img.Encode(buf,len,CXIMAGE_FORMAT_BMP);
    cv::Mat temp2;
    vector<uchar> buff2;
    buff2.resize(len);
    memcpy(&buff2[0],buf,len);
    temp2= cv::imdecode(buff2,1);
    delete []buf; //要释放buf，这个buf在函数里分配了内存

    cv::imshow("111",temp2);
    cv::waitKey();

Mat转CxImage

    Mat temp2;
    vector<uchar> buff;
    cv::imencode(".bmp",temp2,buff);
    CxImage img2(&buff[0],buff.size(),CXIMAGE_FORMAT_BMP);