pyqt 在label上显示图片及清除图片

显示图片

 Image1 = cv2.resize(self.Image, (1000,700), interpolation=cv2.INTER_AREA)
        shrink = cv2.cvtColor(Image1, cv2.COLOR_BGR2RGB)
        self.QtImg = QtGui.QImage(shrink.data,
                                  shrink.shape[1],
                                  shrink.shape[0],
                                  shrink.shape[1] * 3,
                                  QtGui.QImage.Format_RGB888)

        self.label.setPixmap(QtGui.QPixmap.fromImage(self.QtImg))
        self.label.show()

清除图片

self.label.setPixmap(QPixmap(""))

效果图