Question

当我初始化StereoBM对象时，我收到错误“无法定义抽象类的对象”。我检查了calib3d.hpp，发现StereoBM是一个抽象类。请为我提供一个如何在StereoBM类中定义所有这些函数的解决方案

cv::Mat leftimg =cv::imread("leftimage.jpg");
cv::Mat rightimg = cv::imread("rightimage.jpg");
cv::Size imagesize = leftimg.size();

cv::Mat g1,g2,disp,disp8;
cv::cvtColor(leftimg,g1,cv::COLOR_BGR2GRAY);
cv::cvtColor(rightimg,g2,cv::COLOR_BGR2GRAY);

cv::StereoBM *sbm;    
sbm->setDisp12MaxDiff(1);
sbm->setSpeckleRange(8);
sbm->setSpeckleWindowSize(0);
sbm->setUniquenessRatio(0);
sbm->setTextureThreshold(507);
sbm->setMinDisparity(-39);
sbm->setPreFilterCap(61);
sbm->setPreFilterSize(5);
sbm->compute(g1,g2,disp);
normalize(disp, disp8, 0, 255, CV_MINMAX, CV_8U);

cv::imshow("left", leftimg);
cv::imshow("right", rightimg);
cv::imshow("disp", disp8);

Answer 1

如果您使用的是3.1版，则会出现以下错误：

use of undeclared identifier 'createStereoBM'

对于3.1，您可以尝试：

StereoBM *sbm = StereoBM::create(16, 2);

Answer 2

评论中的建议修正了错误，所以我在用建议替换后发布了工作代码，以便在遇到类似问题时可以帮助其他人。

cv::Mat leftimg =cv::imread("leftimage.jpg");
cv::Mat rightimg = cv::imread("rightimage.jpg");
cv::Size imagesize = leftimg.size();
cv::Mat g1,g2,disp,disp8;
cv::cvtColor(leftimg,g1,cv::COLOR_BGR2GRAY);
cv::cvtColor(rightimg,g2,cv::COLOR_BGR2GRAY);

cv::StereoBM *sbm=cv::createStereoBM(16,2);    
sbm->setDisp12MaxDiff(1);
sbm->setSpeckleRange(8);
sbm->setSpeckleWindowSize(0);
sbm->setUniquenessRatio(0);
sbm->setTextureThreshold(507);
sbm->setMinDisparity(-39);
sbm->setPreFilterCap(61);
sbm->setPreFilterSize(5);
sbm->compute(g1,g2,disp);
normalize(disp, disp8, 0, 255, CV_MINMAX, CV_8U);

cv::imshow("left", leftimg);
cv::imshow("right", rightimg);
cv::imshow("disp", disp8);

StereoBm Opencv函数给出错误“无法定义抽象类的对象”

2 个答案: