无法使用python在tkinter中将图像显示为背景

我试图将背景图像提供给我的Tkinter应用程序，但没有错误，也无法看到该图像。我正在尝试使导航屏幕中放置其他图像背景。

我在实际代码中使用下面提到的几行将图像放置在框架中

Frame2 = tk.Frame(self.master)
Frame2.pack(side="left",fill="both",pady=10,anchor='w',expand=True )
photo = tk.PhotoImage(file="images/BG.jpg")
label = tk.Label(Frame2,image=photo)
label.image = photo
label.place(x=0,y=0)


实际代码：

import tkinter as tk
from tkinter.filedialog import asksaveasfile
from tkinter import messagebox
from PIL import ImageTk,Image
class SampleApp(tk.Tk):
def __init__(self):
tk.Tk.__init__(self)
self._frame = None
self.ard_stat = read_json(JSON_PATH)
self.switch_frame(StartPage)
def switch_frame(self,frame_class):
"""Destroys current frame and replaces it with a new one."""
new_frame = frame_class(self)
if self._frame is not None:
self._frame.destroy()
self._frame = new_frame
self._frame.pack()
class StartPage(tk.Frame):
def loopCap(self):
with open(JSON_PATH) as json_file1:
self.data = json.load(json_file1)
#print(self.data)
if self.data['status'] == 'actIVE': #and (self.data['RH_img']!= 'null' or self.data['LH_img']!= 'null')
a = self.text.set(self.data['status'])
b = self.text1.set(self.data['RH_cnt'])
c = self.text2.set(self.data['LH_cnt'])
d = self.text3.set(self.data['barcode'])
return self.text,self.text1,self.text2,self.text3,self.data
def next_save(self):
new_string = self.data['barcode']
new_folder = os.path.join(DATA_PATH,new_string)
if os.path.exists(new_folder):
#print("Folder Already Exists If Condition")
tk.messagebox.showinfo("Info","Folder Already Exists")
else:
#os.isfile(new_string)
#print("Folder Already Exists")
#tkMessageBox.showinfo("Info","Folder Already Exists")
#print("Make Directory Else Condition")
json_dict = read_json(JSON_PATH)
json_dict.update({"frontend_status": "True"})
dump_to_json(json_dict,JSON_PATH)
os.mkdir(new_folder)
for i in range(0,len(data)):
folder_name = os.path.join(DATA_PATH,new_string,data[i])
os.mkdir(folder_name)
files = [('All Files','*.*'),('Python Files','*.py'),('Text Document','*.txt')]
file = asksaveasfile(initialdir=folder_name,filetypes=files,defaultextension=files)
json_dict = read_json(JSON_PATH)
json_dict.update({"frontend_status": "False"})
dump_to_json(json_dict,JSON_PATH)
self.master.after(500,self.loopCap)
def __init__(self,master):
super().__init__(master)
self.master.geometry("1000x700+%d+%d" % (((self.master.winfo_screenwidth() / 2.) - (1280 / 2.)),((self.master.winfo_screenheight() / 2.) - (720 / 2.))))
#self.master.state('zoomed')
self.master.config(bg='powder blue')
#myvar = self.master
Frame1 = tk.Frame(self.master)
Frame1.pack(side="bottom",fill="x",anchor='w')
Frame2 = tk.Frame(self.master)
Frame2.pack(side="left",expand=True )
photo = tk.PhotoImage(file="images/BG.jpg")
label = tk.Label(Frame2,image=photo)
label.image = photo
label.place(x=0,y=0)
tk.Label(Frame2,text=' Decal Check ',fOnt=('arial',25,'bold'),bg='powder blue',fg='black',anchor='w').grid(column=0,pady=2)
b = tk.Button(Frame2,text="Add New Files",command= self.next_save)
b.grid(row=11,column=1,pady=5,sticky='w')
self.master.after(500,self.loopCap)
if __name__ == "__main__":
app = SampleApp()
app.mainloop()


对此的建议将非常有帮助

编辑
按照建议的答案，我在photo = tk.PhotoImage(file="images/BG.jpg")和png中使用了ImageTk.PhotoImage(file="images/BG.jpg")，但是每次我的屏幕如下图所示布置时：

注意：我正在使用Pycharm检查窗口背景

PhotoImage类可以从文件中读取GIF和PGM / PPM图像：
https://effbot.org/tkinterbook/photoimage.htm

请将您的JPG图片转换为适当的格式。