greaterでソートしたけど捨てた

gistfile1.cpp

std::map< uchar, cv::Point, std::greater<uchar> > reliabilities;

 int max_size = this->reliabilities.size() * percent/100.0;
    std::map<uchar,cv::Point>::iterator map_itr = reliabilities.begin();
    for(int i=0; i<max_size; i++){
        // map_itr.first;
        // draw
        cv::Point img_pt = (*map_itr).second;
        int graycode_x = this->decoded_dataX.at<unsigned short>(img_pt.y, img_pt.x);
        int graycode_y = this->decoded_dataY.at<unsigned short>(img_pt.y, img_pt.x);
        cv::Point graycode_pt = cv::Point(graycode_x, graycode_y);

        cv::circle(mask_campus, img_pt, 5, cv::Scalar(0), -1);
        cv::circle(mask_campus, img_pt, 20, cv::Scalar(0));
        cv::circle(graycode_campus, graycode_pt, 2, cv::Scalar(255), -1);
        cv::circle(graycode_campus, graycode_pt, 8, cv::Scalar(255));
        _imshow("GRAYCODE_PATTERN", graycode_campus);
        _imshow("PRESS ESC TO EXIT", mask_campus);
        cv::waitKey(1000);

        std::cout << "rel:" << (int)(*map_itr).first << "\t imgrow:" << (*map_itr).second.y << "\timgcol:" << (*map_itr).second.x << std::endl;

        map_itr++;
    }