QPixmappix1(":/PixmapTest/Resources/Chrysanthemum.jpg");QPixmaptemp(pix1.size());temp.fill(Qt::transparent);QPainterp1(&temp);p1.setCompositionMode(QPainter...

 //示例pushButtonOpenPicBig按钮clicked单击动作触发voidQt_Window::on_pushButtonOpenPicBig_clicked(){stringfilename=GetFileName();//获取图像路径MatpicMat=imread(filename,1);...