python-3.x - 为我的浏览文件代码调整 tkinter 中的图像大小

Question

如何调整图像大小？这是我的代码..

from tkinter import *
from tkinter import ttk
from tkinter import filedialog
from PIL import Image, ImageTk


class Root(Tk):
    def __init__(self):
        super(Root, self).__init__()
        self.title("Python Tkinter Dialog Widget")
        self.minsize(640, 400)

        self.labelFrame = ttk.LabelFrame(self, text = "Open File")
        self.labelFrame.grid(column = 0, row = 1, padx = 20, pady = 20)

        self.button()


    def button(self):
        self.button = ttk.Button(self.labelFrame, text = "Browse A File",command = self.fileDialog)
        self.button.grid(column = 1, row = 1)


    def fileDialog(self):

        self.filename = filedialog.askopenfilename(initialdir =  "/", title = "Select A File", filetype =
        (("jpeg files","*.jpg"),("all files","*.*")) )
        self.label = ttk.Label(self.labelFrame, text = "")
        self.label.grid(column = 1, row = 2)
        self.label.configure(text = self.filename)

        img = Image.open(self.filename)
        photo = ImageTk.PhotoImage(img)

        self.label2 = Label(image=photo)
        self.label2.image = photo 
        self.label2.grid(column=3, row=4)

root = Root()
root.mainloop()

标签： python-3.xfiletkinterpython-imaging-library

Answer 1

您可以使用Image.resize()不保持图像纵横比的Image.thumbnail()哪个，或者保持图像纵横比的哪个：

img = Image.open(self.filename)
imgsize = (600, 400)  # change to whatever size you want
#img = img.resize(imgsize)
img.thumbnail(imgsize)
photo = ImageTk.PhotoImage(img)