图像滤波小demo

import tkinter
from tkinter import filedialog
from tkinter import *
import matplotlib.pyplot as plt
import cv2
top = tkinter.Tk()
top.title("图片滤波")
top.geometry('300x300+500+300')
def blur0():
   pic0 = tkinter.filedialog.askopenfilename()
   img = cv2.imread(pic0)
   blu = cv2.blur(img, (5, 5))
   plt.subplot(1, 2, 1)
   plt.imshow(img)
   plt.title('src')
   plt.subplot(1, 2, 2)
   plt.imshow(blu)
   plt.title('blur')
   plt.show()
def meanblur0():
    pic0 = tkinter.filedialog.askopenfilename()
    img = cv2.imread(pic0)
    median = cv2.medianBlur(img, 5)
    plt.subplot(1, 2, 1)
    plt.imshow(img)
    plt.title('src')
    plt.subplot(1, 2, 2)
    plt.imshow(median)
    plt.title('medianblur')
    plt.show()
def Laplacian0():
    pic0 =tkinter.filedialog.askopenfilename()
    img = cv2.imread(pic0)
    lap = cv2.Laplacian(img,-1)
    plt.subplot(1, 2, 1)
    plt.imshow(img)
    plt.title('src')
    plt.subplot(1, 2, 2)
    plt.imshow(lap)
    plt.title('Laplacian')
    plt.show()
def Sobel0():
    pic0 = tkinter.filedialog.askopenfilename()
    img = cv2.imread(pic0)
    sobx = cv2.Sobel(img, cv2.CV_64F, 1, 0)
    soby = cv2.Sobel(img, cv2.CV_64F, 0, 1)
    sobxy = cv2.Sobel(img,cv2.CV_64F,1,1)
    plt.subplot(2, 2, 1)
    plt.imshow(img)
    plt.title('src')
    plt.subplot(2, 2, 2)
    plt.imshow(sobx)
    plt.title('sobelX')
    plt.subplot(2, 2, 3)
    plt.imshow(soby)
    plt.title('sobelY')
    plt.subplot(2, 2, 4)
    plt.imshow(sobxy)
    plt.title('sobelXY')
    plt.show()
b1 = tkinter.Button(top,text='   选择图片均值滤波   ',command=blur0)
b1.pack()
b2 = tkinter.Button(top,text='   选择图片中值滤波   ',command=meanblur0)
b2.pack()
b3 = tkinter.Button(top,text='选择图片拉普拉斯滤波',command=Laplacian0)
b3.pack()
b4 = tkinter.Button(top,text='  选择图片sobel滤波  ',command=Sobel0)
b4.pack()
top.mainloop()