QT图像QImage转换成QPixmap:
QImage image;
QPixmap map = QPixmap::fromImage(image);
QT图像QPixmap转换成Mat:
QPixmap image;
Mat frame = Mat(image.height(),image.width(),CV_8UC3,(void *)image.bits(),image.bytesPerLine());
QT图像Mat转换成QImage:
Mat frame;
QImage img=QImage((const unsigned char*)(frame.data),frame.cols,frame.rows,frame.step,QImage::Format_RGB888);