cvLoadImage, cvarrToMat, cvtColor

std::string filename의 image를 load하여 간단한 변환.

     IplImage* img = cvLoadImage(fileName.c_str());

     cv::Mat src = cv::cvarrToMat(img).clone();

     cv::Mat src_gray;

     cvReleaseImage(&img);

     if (src.channels() == 3)

     {

           cv::cvtColor(src, src_gray, CV_BGR2GRAY);

     }

     else if (src.channels() == 4)

     {

           cv::cvtColor(src, src_gray, CV_BGRA2GRAY);

     }

     else if (src.channels() == 1)

     {

           src_gray = src.clone();

     }

     // if (!findContours(src_gray, useFilter)) return false;

     cv::Mat sum_image;

     cv::cvtColor(src_gray, sum_image, CV_GRAY2RGB);

     for (int i = 0; i < m_candidatesTargets.size(); i++)

     {

           Target& t = m_candidatesTargets[i];

           if (m_candidatesTargets[i].type == Target::UNKNOWN)

           {

                ellipse(sum_image, t.ellipse, cv::Scalar(0, 255, 0), 1, 8);

           }

           else

           {

                ellipse(sum_image, t.ellipse, cv::Scalar(0, 0, 255), 1, 8);

           }

     }

     cv::namedWindow("sum_image", CV_WND_PROP_ASPECTRATIO);

     cv::imshow("sum_image", sum_image);

     cv::waitKey();