Python -Größengrößenbild im Tkinter
# How to resize an image in Tkinter to exactly half of the original size
from tkinter import *
from PIL import Image, ImageTk
# Function to resize an image
def resize_image():
global img_info
global img
global c
global new_width
global new_height
# They are int
print("Width type: ", type(new_width), "Height type: ", type(new_height))
# Divide the original width by 2
resized_width = new_width / int(2)
resized_height = new_height / int(2)
# They are float
print("Width type: ", type(resized_width), "Height type: ", type(resized_height))
# Convert float to int
resized_width = int(resized_width)
resized_height = int(resized_height)
# They are int
print("Width type: ", type(resized_width), "Height type: ", type(resized_height))
# Declare new size to the image
img_info = img_info.resize((resized_width, resized_height), Image.ANTIALIAS)
img = ImageTk.PhotoImage(img_info)
c.create_image(0, 0, image=img, anchor=NW)
# New size of image
print("Size of image: " + str(resized_width) + "x" + str(resized_height))
# Setting up the window
root = Tk()
# Resize image button
Button(root, text='resize image', command=lambda:resize_image()).pack()
# Display image
img_info = Image.open("placeholder.jpg")
new_width, new_height = img_info.size
# Size of image
print("Size of image: " + str(new_width) + "x" + str(new_height))
c = Canvas(root, width=new_width, height=new_height, bg="black")
c.pack()
img = ImageTk.PhotoImage(Image.open(r"placeholder.jpg"))
c.create_image(2, 2, image=img, anchor=NW)
# Main loop
root.mainloop()
Hello There
