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Deotyma
Deotyma

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The Picture Application with Python and TKinter

#python #beginners #tutorial #tkinter

A few days ago I tested how Pillow works with Python and I liked so I decided to write a little application with Pillow and Tkinter.

Here there are explications of how I started a project.

In a project, I create a file pillow_essaies.py where I put all code from main.py.

In main.py I start my project:

import tkinter as tk
from tkinter import *

window = Tk()
window.title("Pictures transformer")
window.geometry("900x500+100+100")
window.configure(bg="#e2f9b8")

window.mainloop()
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first image

I add also an icon, for this, I have to import Pillow:

from PIL import Image, ImageTk
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and I create an icon:

# icon
image_icon=ImageTk.PhotoImage(file="images/tulips.jpeg")
window.iconphoto(False, image_icon)
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icon od tulips

One icon is added now I add an image to the interface. The order is very important because of ImageTk.PhotoImage has no method resize :

# logo
image = Image.open("./images/tulips.jpeg")
img1 = image.resize((70, 100), Image.ANTIALIAS)
logo = ImageTk.PhotoImage(img1)
Label(image=logo, bg="#fff").place(x=10, y=10)
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interface with logo

I add also some text:

Label(text="Pictures transformer", font="arial 30 bold", fg="#313715", bg="#e2f9b8").place(x=90, y=50)
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text added

Now I create a space where I will import an image:

# selected image
selectimage = Frame(width=400, height=400, bg="#d6dee5")
selectimage.place(x=10, y=120)

f = Frame(selectimage, bg="black", width=380, height=320)
f.place(x=10, y=10)

lbl = Label(f, bg="black)
lbl.place(x=0, y=0)
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section image

Now I need to import an image from the computer. For this I create a button:

Button(selectimage, text="Select image", width=12, height=2, font="arial 14 bold", command=showimage).place(x=10, y=340)
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I need to write a function showimage. For this I import os and filedialog:

from tkinter import filedialog
import os
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def showimage():
    filename=filedialog.askopenfilename(initialdir=os.getcwd(),
                                        title="Select image file", filetypes=(("PNG file", "*.png"),
                                                                              ("JPG file", "*.jpg"),
                                                                              ("JPEG file", "*.jpeg"),
                                                                              ("ALL file", "*.txt")))
    importedimage = Image.open(filename)
    importedimage = ImageTk.PhotoImage(importedimage)
    lbl.configure(image=importedimage, width=380, height=320)
    lbl.image=importedimage
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Image impoeted

Here I will add some filters. I start with buttons:

# transformation section
transformationsection = Frame(width=440, height=510, bg="#939f5c")
transformationsection.place(x=450, y=10)

Label(transformationsection, text="Filters:", font="arial 20 bold", fg="#fff", bg="#939f5c").place(x=10, y=10)

Button(transformationsection, text="BLUR", width=12, height=2, font="arial 14 bold", command=blurimage).place(x=10,
                                                                                                              y=50)
Button(transformationsection, text="CONTOUR", width=12, height=2, font="arial 14 bold", command=conturimage).place(x=155, y=50)
Button(transformationsection, text="EMBOSS", width=12, height=2, font="arial 14 bold", command=embossimage).place(x=300, y=50)
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Here I create some functions:

def blurimage():
    image1 = Image.open(filename)
    bluredimage = image1.filter(ImageFilter.BLUR)
    bluredimage = ImageTk.PhotoImage(bluredimage)
    lbl.configure(image=bluredimage, width=380, height=320)
    lbl.image = bluredimage
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But a function like this will not work because filename is not yet a global variable and from PIL I don't yet import ImageFilter so I do it like this:

from PIL import ImageFilter
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and I define in function showimage filename like glonal:

 global filename
    filename = filedialog.askopenfilename(initialdir=os.getcwd(),
                                          title="Select image file", filetypes=(("PNG file", "*.png"),
                                                                                ("JPG file", "*.jpg"),
                                                                                ("JPEG file", "*.jpeg"),
                                                                                ("ALL file", "*.txt")))
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And now it works:

Blur image

Other functions are very easy to create:

def conturimage():
    image2 = Image.open(filename)
    conturedimage = image2.filter(ImageFilter.CONTOUR)
    conturedimage = ImageTk.PhotoImage(conturedimage)
    lbl.configure(image=conturedimage, width=380, height=320)
    lbl.image = conturedimage

def embossimage():
    image3 = Image.open(filename)
    embossedimage = image3.filter(ImageFilter.EMBOSS)
    embossedimage = ImageTk.PhotoImage(embossedimage)
    lbl.configure(image=embossedimage, width=380, height=320)
    lbl.image = embossedimage
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Filter CONTOUR
contour image

Filter EMBOSS

Image embossed

That's good, but what if I want to suppress all changes?
So in the section selected image, I create a button to restart:

Button(selectimage, text="Restart", width=12, height=2, font="arial 14 bold", command=restartimage).place(x=260, y=340)
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And here is its function:

def restartimage():
    restartedimage = Image.open(filename)
    restartedimage = ImageTk.PhotoImage(restartedimage)
    lbl.configure(image=restartedimage, width=380, height=320)
    lbl.image = restartedimage
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but more efficace will be that function:

def restartimage():
    lbl.configure(image=importedimage, width=380, height=320)
    lbl.image = importedimage
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restarted image

Now I would like to rotate my picture so I create a slider:

# rotate section
Label(transformationsection, text="Rotate image:", font="arial 20 bold", fg="#fff", bg="#939f5c").place(x=10, y=100)

rotateimage = Scale(transformationsection, from_=0, to=360, orient=HORIZONTAL, bg="#313715", length=420)
rotateimage.place(x=10, y=140)
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slider rotation image

and function which goes with it:

def rotate(var):
    image4 = Image.open(filename)
    rotatedimage = image4.rotate(rotateimage.get())
    rotatedimage = ImageTk.PhotoImage(rotatedimage)
    lbl.configure(image=rotatedimage, width=380, height=320)
    lbl.image = rotatedimage
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rotated image

Now I want to change some colors so I create a vertical slider for each color:

# color change
Label(transformationsection, text="Color change:", font="arial 20 bold", fg="#fff", bg="#939f5c").place(x=10, y=190)

redimage = Scale(transformationsection, from_=0, to=255, orient=VERTICAL, bg="#313715", length=180, command=changered)
redimage.place(x=40, y=230)
Label(transformationsection, text="RED", font="arial 12 bold", fg="#fff", bg="#939f5c").place(x=40, y=420)

greenimage = Scale(transformationsection, from_=0, to=255, orient=VERTICAL, bg="#313715", length=180, command=changegreen)
greenimage.place(x=200, y=230)
Label(transformationsection, text="GREEN", font="arial 12 bold", fg="#fff", bg="#939f5c").place(x=200, y=420)

blueimage = Scale(transformationsection, from_=0, to=255, orient=VERTICAL, bg="#313715", length=180,  command=changeblue)
blueimage.place(x=350, y=230)
Label(transformationsection, text="BLUE", font="arial 12 bold", fg="#fff", bg="#939f5c").place(x=350, y=420)
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And I create some functions to change colors:

def changered(var):
    image5 = Image.open(filename)
    r, g, b = image5.split()
    r = r.point(lambda i: redimage.get())
    coloredimage = Image.merge("RGB", (r, g, b))
    coloredimage.getextrema()
    coloredimage = ImageTk.PhotoImage(coloredimage)
    lbl.configure(image=coloredimage, width=380, height=320)
    lbl.image = coloredimage

def changeblue(var):
    image5 = Image.open(filename)
    r, g, b = image5.split()
    b = b.point(lambda i: blueimage.get())
    coloredimage = Image.merge("RGB", (r, g, b))
    coloredimage.getextrema()
    coloredimage = ImageTk.PhotoImage(coloredimage)
    lbl.configure(image=coloredimage, width=380, height=320)
    lbl.image = coloredimage

def changegreen(var):
    image5 = Image.open(filename)
    r, g, b = image5.split()
    g = g.point(lambda i: greenimage.get())
    coloredimage = Image.merge("RGB", (r, g, b))
    coloredimage.getextrema()
    coloredimage = ImageTk.PhotoImage(coloredimage)
    lbl.configure(image=coloredimage, width=380, height=320)
    lbl.image = coloredimage
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Voilà the result:

colors changed image

All code of this little application you can find here

This is an example of how you can use the Pillow and Tkinter.
Have a nice weekend and get some rest.

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