opencv - “QImage with no type”编译错误信息

Question

你好谁能帮我弄清楚如何解决这个错误消息？我正在尝试将 Qt3 工作代码重写为 Qt4 以将 IplImage 转换为 QImage 并找到“正确的转换类型”但是我的代码如下导致“ ISO C++ 禁止声明没有类型的'QImage' ”

....
QImage *qqImage;
if (this->data->nChannels == 1)
{

    QVector<QRgb> myColorTable;
    for (int i = 0; i < 256; i++)
        myColorTable.push_back(qRgb(i, i, i)); //colorTable[i]);


    qqImage = new QImage(qImageBuffer, width, height, QImage::Format_Indexed8);
}
else
{

    qqImage = new QImage(qImageBuffer, width, height, QImage::Format_RGB32);

}

return qqImage;

Answer 1

下面的代码片段适用于我的 Qt4 应用程序，试一试。

    // img1 and img2 are Mat objects, img1 is grayscale,
    // img2 is three channel RGB image

    QImage qimg1,qimg2;

    if (this->data->nChannels == 1){

    qimg1=QImage(img1.data,img1.cols,img1.rows,QImage::Format_Indexed8);

    }

    else {

    qimg2=QImage(img2.data,img2.cols,img2.rows,QImage::Format_RGB888);

    }