QFile或QDir的中文路径操作
QTextCodec *code = QTextCodec::codecForName("gb2312");//解决中文路径问题
QString FilePath = QString::fromLocal8Bit(code->fromUnicode(HdrPath));
opecv的imwrite函数的中文路径操作
string str = FileName.toLocal8Bit().toStdString();
bool flag = cv::imwrite(str, m_SaveImage, compression_params);