python实现图片自动分类小程序

import cv2
import numpy as np
import sys
import os
import tkinter           
import PIL
 
from PIL import Image,ImageTk
from tkinter import ttk
from tkinter.messagebox import showinfo

global canvas
global pre_img1
 
def position_picture(f):    
    img=PIL.Image.open(f)
    img=img.resize((150,150))
    preview_img=ImageTk.PhotoImage(img)    
    return preview_img
 
def selected_picture():
    global canvas,pre_img1
    
    d=tkinter.filedialog.askopenfilename(title='picture',filetypes=[('jpg','*.jpg')])
    
    pre_img1=position_picture(d)
    canvas.delete('all')
    canvas.create_image((75,75),image=pre_img1)  

if __name__=='__main__':
 
    global canvas
    global pre_img1
    
    root=tkinter.Tk()
    root.title("预览")
 
    pre_img=position_picture(fn)
    canvas=tkinter.Canvas(root,width=150,height=150,bg='white')
    canvas.grid(column=2,row=0)
    canvas.create_image((75,75),image=pre_img)
 
    for i in range(0,5):
        canvas1=tkinter.Canvas(root,width=150,height=150,bg='white')
        canvas1.grid(column=i,row=4)
        canvas1.create_image((75,75),image=pre_img)
 
    ......
    
    button1=ttk.Button(root,text="选择图片",command=selected_picture)
    button1.grid(column=2,row=2)
 
    button2=ttk.Button(root,text="自动分类",command=identify_picture)
    button2.grid(column=2,row=3)
 
    root.mainloop