TKinter python 3.x调整图像大小

Question

I would like to resize an image using TKinter. Please note that I will not be using PIL for this.

How can I currently have this image, which works fine.

logo = PhotoImage(file="logo_dribbble-01_1x.PNG")
label = Label(f1,image=logo, borderwidth=0, highlightthickness=0)
label.pack()

I would like to resize this image so that the logo looks smaller.

I tried doing this, which was suggested here

smallLogo = PhotoImage(file="logo_dribbble-01_1x.PNG")
smallLogo = smallLogo.subsample(2, 2)
smallLabel = Label(f1,image=smallLogo, borderwidth=0, highlightthickness=0)
smallLabel.pack()

But this creates an empty label without displaying the image.

I tried to resize the image using Photoshop and use that image and then use that .png image to display the smaller image like so:

logo = PhotoImage(file="logo_dribbble-01_1xsmall.PNG")
smallLabel = Label(f1,image=smallLogo, borderwidth=0, highlightthickness=0)
smallLabel.pack()

But, I get this error when I try to run the code _tkinter.TclError: encountered an unsupported criticial chunk type "mkBF"

How can I resolve this issue?

Answer 1

The following code worked for me:

from tkinter import *

f1 = Tk()
smallLogo = PhotoImage(file="image.PNG")
smallLogo = smallLogo.subsample(2, 2)
smallLabel = Label(f1,image=smallLogo, borderwidth=0, highlightthickness=0)
smallLabel.pack()
f1.mainloop()

Note I'm on tk-8.6

Answer 2

I had to keep a reference of the image that was being used by the label like so:

logo = PhotoImage(file="image.png")
logo = logo.subsample(2, 2)
label = Label(root,image=logo, borderwidth=0, highlightthickness=0)
label.image = logo
label.pack()

Answer 3

smallLogo = PhotoImage(file="logo_dribbble-01_1x.PNG")
smallLogo_one = smallLogo.subsample(2, 2)
smallLabel = Label(f1,image=smallLogo_one, borderwidth=0, highlightthickness=0)
smallLabel.pack()

I think this will solve the problem for you.Your variable for PhotoImage is the same as variable for the Subsample to trim the image for you. I change the variable for subsample to smallLogo_one the parsed it to the image attribute in the Lable.