用Python给图像算法做个简单应用界面

import tkinter as tk
import tkinter.ttk as ttk
import tkinter.messagebox
import tkinter.filedialog
import cv2 as cv
from PIL import Image, ImageTk
import time
import threading
 
RELIEF=["flat", "raised", "sunken", "solid", "ridge", "groove"]
CURSOR=["arrow","circle","clock","cross","dotbox","exchange",
        "fleur","heart","man","mouse","pirate","plus",
        "shuttle","sizing","spider","spraycan","star","target",
        "tcross","trek","watch"]
 
def PIL2CV(im):
    im = im[:, :, ::-1]
    return ImageTk.PhotoImage(Image.fromarray(im))
 
def Buttom1_CallBack():
    filename = tk.filedialog.askopenfilename() #弹出文件选择对话框
    if filename=="": #用户没有选择任何文件
        return
    new_img = cv.imread(filename)
    if new_img is None:
        tk.messagebox.showerror("抱歉", "图片加载失败！")
        return
    new_img = cv.resize(new_img, (130, 120))
    new_img = PIL2CV(new_img)
    #后面两句实现图片切换显示
    Label2.configure(image=new_img, width=130, height=120)
    Label2.image = new_img
    tk.messagebox.showinfo("提示","加载图片完成！")
 
def Buttom2_CallBack():
    info = Combobox1.get()
    param = Entry1.get()
    tk.messagebox.showwarning("警告", "你选择了："+info+" "+param)
 
def process_code(delay):
    for i in range(100):
        Progressbar1["value"] = i+1
        root.update()
        time.sleep(delay)
    Buttom3.configure(text="开始处理", state="normal")
    tk.messagebox.showinfo("提示", "处理完成！")
    Progressbar1.configure(value=0)
 
def Buttom3_CallBack():
    yn = tk.messagebox.askyesno("警告","是否需要开始处理？")
    if not yn:
        return
 
    Buttom3.configure(text="处理中...", state="disabled") #控件失效
    delay = 0.01
 
    # 单独开一个线程，绑定线程函数process_code，参数后面的","很关键
    # 不开线程界面会进入处理函数死循环，用户体验不太好
    t = threading.Thread(target=process_code, args=(delay,))
    t.start()
 
def Buttom4_CallBack():
    global page_count
    if page_count<=0:
        page_count = 0
        return
    else:
        page_count -= 1
        Label4.configure(text="第"+str(page_count)+"页")
    return
 
def Buttom5_CallBack():
    global page_count
    if page_count>=100:
        page_count = 100
        return
    else:
        page_count += 1
        Label4.configure(text="第" + str(page_count) + "页")
    return
 
#上面是控件的响应函数
################################################################################
#下面是界面控件的布局
 
#主界面
root = tk.Tk()
root.title("python界面测试") #修改界面标题
root.iconbitmap("img/tm.ico") #修改界面ico
root.geometry("800x500") #设定界面尺寸 HxW
root.resizable(width=False, height=False) #不允许调整窗口大小，不固定删除此行
 
#添加两个板块边界框
Frame1 = tk.LabelFrame(root, height=200, width=145)
Frame1.place(x=15, y=100)
Frame2 = tk.LabelFrame(root, text="结果显示", height=400, width=620)
Frame2.place(x=170, y=5)
 
#添加图片显示框、加载图片框、加载图片按钮
img = cv.imread("img/title.jpg") #opencv加载图片
img = cv.resize(img, (140,70)) #图片缩放
img = PIL2CV(img) #opencv格式转pillow
Label1 = tk.Label(root, image=img) #初始化默认图片
Label1.place(x=15, y=20) #图片显示框在界面上的位置
 
Label2 = tk.Label(root,
                  width=18,height=7, #控件大小（注意单位不是像素）
                  bg="white") #默认白色背景
Label2.place(x=20,y=110) #图片显示框在界面上的位置
 
Buttom1 = tk.Button(root,
                    width=15,height=1, #按钮大小
                    text="加载检索图片", #按钮文本
                    relief=RELIEF[3], #按钮的风格
                    command=Buttom1_CallBack) #绑定响应函数
Buttom1.place(x=25, y=250) #按钮在界面上的位置
 
#添加参数文本框、下拉框、下拉框内容输出按钮
Combobox1 = ttk.Combobox(root, width=17, height=1)
Combobox1["value"] = ("窗前明月光","疑是地上霜","举头望明月","明月照我影")
Combobox1.current(0)
Combobox1.place(x=15, y=320)
 
Label3 = tk.Label(root, text="参数")
Label3.place(x=15, y=350)
 
Entry1 = ttk.Entry(root, width=9) #文本框为啥没有H
Entry1.place(x=50, y=350)
Entry1.insert(0,"0.5")
 
Buttom2 = tk.Button(root,
                    width=15,height=1,
                    text="你选择了什么？",
                    relief=RELIEF[3],
                    command=Buttom2_CallBack)
Buttom2.place(x=25, y=380)
 
#添加进度条、开始处理按钮
Progressbar1 = ttk.Progressbar(root, length=600, value=0, cursor=CURSOR[1])
Progressbar1.place(x=15, y=460)
 
Buttom3 = tk.Button(root,
                    width=15,height=1,
                    text="开始处理",
                    relief=RELIEF[3],
                    command=Buttom3_CallBack)
Buttom3.place(x=630, y=455)
 
#添加两个滚动按钮
Buttom4 = tk.Button(root,
                    width=3,height=1,
                    text="<",
                    relief=RELIEF[1],
                    command=Buttom4_CallBack)
Buttom4.place(x=380, y=410)
 
global page_count #全局变量，用来控制页码
page_count=0
Label4 = tk.Label(root, text="第0页")
Label4.place(x=420, y=410)
 
Buttom5 = tk.Button(root,
                    width=3,height=1,
                    text=">",
                    relief=RELIEF[1],
                    command=Buttom5_CallBack)
Buttom5.place(x=470, y=410)
 
root.mainloop()
#这句话后面不能有代码