Qt Qimage图片翻转（水平、垂直、顺时针、逆时针）

void ImageViewer::horFilp() { image = image.mirrored(true, false); imageLabel->setPixmap(QPixmap::fromImage(image)); }2、垂直翻转

void ImageViewer::verFilp() { image = image.mirrored(false, true); imageLabel->setPixmap(QPixmap::fromImage(image)); }3、顺时针旋转

void ImageViewer::clockwise() { QMatrix matrix; matrix.rotate(90.0); image = image.transformed(matrix,Qt::FastTransformation); imageLabel->setPixmap(QPixmap::fromImage(image)); }4、逆时针旋转

void ImageViewer::anticlockwise() { QMatrix matrix; matrix.rotate(-90.0); image = image.transformed(matrix,Qt::FastTransformation); imageLabel->setPixmap(QPixmap::fromImage(image)); }