Stitcher拼接设置感兴趣区域

int main(int argc, char* argv[])
{
    int retval = parseCmdArgs(argc, argv);
    if (retval) return -1;

    Mat pano;

    printf("Channels image1: %d\n", imgs[0].type());
    printf("Channels image2: %d\n", imgs[1].type());

    int width = 170;

    cv::Rect rect1 = cvRect( imgs[0].cols-width, 0, width, imgs[0].rows); //second half of the first image
    cv::vector<cv::Rect> roi1;
    roi1.push_back(rect1);

    cv::Rect rect12 =  cvRect(0, 0,width, imgs[1].rows);  //first half of the second image
    cv::Rect rect23 = cvRect(imgs[1].cols -width, 0, width, imgs[1].rows);  //second half of the first image
    cv::vector<cv::Rect> roi2;
    roi2.push_back(rect12);
    roi2.push_back(rect23);

    cv::Rect rect3 = cvRect(0, 0, width, imgs[2].rows); //first half of the third image
    cv::vector<cv::Rect> roi3;
    roi3.push_back(rect3);

    cv::vector<cv::vector<cv::Rect>> rois;
    rois.resize(3);
    rois[0] = roi1;
    rois[1] = roi2;
    rois[2] = roi3;
    //cv::imshow("debug_img1", imgs[0]);
    Mat tmp1, tmp2, tmp3;
    cvtColor(imgs[0], tmp1, CV_BGR2GRAY); 
    cvtColor(imgs[1], tmp2, CV_BGR2GRAY); 
    cvtColor(imgs[2], tmp3, CV_BGR2GRAY); 
    /*lensCorrectorBarrel(tmp1.data, tmp1.cols, tmp1.rows);
    lensCorrectorBarrel(tmp2.data, tmp2.cols, tmp2.rows);
    lensCorrectorBarrel(tmp3.data, tmp3.cols, tmp3.rows);
    imwrite("corr1.tif", tmp1);
    imwrite("corr2.tif", tmp2);
    imwrite("corr3.tif", tmp3);*/
    /*namedWindow( "debug_img_corr1", CV_WINDOW_AUTOSIZE );
    namedWindow( "debug_img_corr2", CV_WINDOW_AUTOSIZE );
    cv::imshow("debug_img_corr1", tmp1);
    cv::imshow("debug_img_corr2", tmp2);*/

    cvtColor(tmp1, imgs[0], CV_GRAY2BGR); 
    cvtColor(tmp2, imgs[1], CV_GRAY2BGR); 
    cvtColor(tmp3, imgs[2], CV_GRAY2BGR); 

    //char cc = cvWaitKey(0);

    /*cv::rectangle( imgs[0], rect1, CV_RGB(255,0,0), 1);
    cv::rectangle( imgs[1], rect12, CV_RGB(255,0,0), 1);
    cv::rectangle( imgs[1], rect23, CV_RGB(255,0,0), 1);
    cv::rectangle( imgs[2], rect3, CV_RGB(255,0,0), 1);
    cv::imshow("debug_img1", imgs[0]);
    cv::imshow("debug_img2", imgs[1]);
    cv::imshow("debug_img3", imgs[2]);
    char c = cvWaitKey(0);*/

    Stitcher stitcher = Stitcher::createDefault(false);
    stitcher.setPanoConfidenceThresh(0.07);
    stitcher.setWaveCorrection(false);

    //detail::BestOf2NearestMatcher *matcher = new detail::BestOf2NearestMatcher(false, 0.001/*=match_conf*/);
    //detail::SurfFeaturesFinder *featureFinder = new detail::SurfFeaturesFinder(100);
    //stitcher.setFeaturesMatcher(matcher);
    //stitcher.setFeaturesFinder(featureFinder);
    Stitcher::Status status = stitcher.stitch(imgs, rois, pano);
    //Stitcher::Status status = stitcher.composePanorama(imgs, pano);

    if (status != Stitcher::OK)
    {
        cout << "Can't stitch images, error code = " << status << endl;
        return -1;
    }

    imwrite(result_name, pano);

    char ac = cvWaitKey(0);
    if(ac == 'ESC')
        return 0;
}