qt - 将 Qt QByteArray 转换为 OpenCV cv::InputArray

Question

如何将 Qt QByteArray 转换为 cv::InputArray？

我需要传入自定义特征向量:

// Constructor
HoGDetector::HoGDetector(QObject *parent) :
    QObject(parent)
{

    qDebug() << "Creating HoG Detector";

    // Set the SVM Detector ( Default OpenCV One )
    m_HoG.setSVMDetector(HOGDescriptor::getDefaultPeopleDetector());

    // Read
    QFile svmVectorFile(":/descriptorvector.dat");
    QByteArray svmVector = svmVectorFile.readAll();

    // Set the SVM Detector - custom trained HoG Detector
    m_HoG.setSVMDetector(svmVector);

}

谢谢!

Answer 1

OpenCV 知道如何将 std:vector 转换为 InputArray，因此这应该可以解决问题:

m_HoG.setSVMDetector(std::vector<uchar>(svmVector.begin(), svmVector.end()));