Qt Creator Ubuntu版本奇怪的编译错误

Question

我只是试图在Ubuntu版本中测试一些OpenCV使用方法,Qt而且我遇到了一些我遇到困难的编译器问题.

Mat imageSpecularReflectorRemoved ,edgesImage;
Mat img_object = imread(patternImageName);
removeSpecuralReflector(img_object,imageSpecularReflectorRemoved);
applyLaplacian(img_object, edgesImage);

std::vector <cv::Mat> listOfImagesToDisplay;
listOfImagesToDisplay.push_back(img_object);
listOfImagesToDisplay.push_back(imageSpecularReflectorRemoved);
listOfImagesToDisplay.push_back(edgesImage);
ImagesUtility imgUtil;
cv::Mat fullImage = imgUtil.makeCanvas(listOfImagesToDisplay,400,1);

这是ImagesUtility类的接口文件(.h文件)

 class ImagesUtility
    {
    public:
        ImagesUtility();
        cv::Mat makeCanvas(std::vector<cv::Mat> vecMat, int windowHeight, int nRows);
    };

这是ImagesUtility类的cpp文件

ImagesUtility::ImagesUtility()
{

}

cv::Mat makeCanvas(std::vector<cv::Mat> vecMat, int windowHeight, int nRows)
{

    return canvasImage;
}

编译器错误是:

知道这里发生了什么吗？

谢谢.

Answer 1

尝试

cv::Mat ImagesUtility::makeCanvas(std::vector<cv::Mat> vecMat, int windowHeight, int nRows)
{

    return canvasImage;
}