有人能帮我在Qt中调整图片大小而不让图片失真吗?以下是我的代码。目前的结果与原始质量相比不太好。谢谢...
QImage img(name);
QPixmap pixmap;
pixmap = pixmap.fromImage(img.scaled(width,height,Qt::IgnoreAspectRatio,Qt::FastTransformation));
QFile file(folder+"/"+name);
file.open(QIODevice::WriteOnly);
pixmap.save(&file, "jpeg",100);
file.close();