from PySide6.QtWidgets import QApplication,QWidget,QVBoxLayout,QSlider,QFileDialog,QLabel,QPushButton
from PIL import Image,ImageFilter,ImageQt
from PySide6.QtCore import Qt
from PySide6.QtGui import QPixmap

class Mywindow(QWidget):
    def __init__(self):
        super().__init__()
        self.btn =QPushButton('点我导入图片')
        self.btn.clicked.connect(self.getImg)

        self.lbshowImg =QLabel()

        self.slider =QSlider(Qt.Orientation.Horizontal)
        self.slider.setRange(0,50)
        self.slider.setTickPosition(QSlider.TickPosition.TicksBelow)
        self.slider.setTickInterval(1)
        self.slider.valueChanged.connect(self.sliderValieChanged)

        self.mainlaout =QVBoxLayout()
        self.mainlaout.addWidget(self.btn)
        self.mainlaout.addWidget(self.lbshowImg)
        self.mainlaout.addWidget(self.slider)
        self.setLayout(self.mainlaout)

    def getImg(self):
        self.img =Image.open(QFileDialog.getOpenFileName(self,'选择头像','.','图像文件(*.png *.jpg)')[0])
        self.lbshowImg.setPixmap(QPixmap.fromImage(ImageQt.ImageQt(self.img)))

    def sliderValieChanged(self,value):
        self.blurpic =self.img.filter(ImageFilter.GaussianBlur(value))
        self.lbshowImg.setPixmap(QPixmap.fromImage(ImageQt.ImageQt(self.blurpic)))

if __name__ =='__main__':
    app =QApplication([])
    win = Mywindow()
    win.show()
    app.exec()