c++ - 对 'cv::viz::Viz3d::Viz3d(std::string&const)' 的 undefined reference

Question

我已经使用 qtcreator 运行了我的 opencv 代码，当我尝试使用 Viz 库时得到了这个答案。

代码:

#include <opencv2/calib3d/calib3d.hpp>

#include <opencv2/imgproc/imgproc.hpp>

#include <opencv2/highgui/highgui.hpp>

#include <opencv2/contrib/contrib.hpp>

#include <opencv2/viz/vizcore.hpp>

    /// Create a window
    viz::Viz3d myWindow("Viz Demo");

    /// Start event loop
    myWindow.spin();

    /// Event loop is over when pressed q, Q, e, E
    printf("First event loop is over\n");

    /// Access window via its name
    viz::Viz3d sameWindow = viz::getWindowByName("Viz Demo");

    /// Start event loop
    sameWindow.spin();

    /// Event loop is over when pressed q, Q, e, E
    printf("Second event loop is over\n");

    /// Event loop is over when pressed q, Q, e, E
    /// Start event loop once for 1 millisecond
    sameWindow.spinOnce(1, true);
    while(!sameWindow.wasStopped())
    {
        /// Interact with window

        /// Event loop for 1 millisecond
        sameWindow.spinOnce(1, true);
    }

    /// Once more event loop is stopped
    printf("Last event loop is over\n");

我已经在 Ubuntu 12.10 上安装了 2.4.9 版的 opencv，我认为它们是兼容的。

谢谢。

Answer 1

如果安装了库

• 转到项目->属性->设置->GCC C++ 链接器-> 库

• 将 opencv_viz 添加到您的库(屏幕截图)

• 保存并构建项目