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ImageStenography.py
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# DataFlair- import modules
from tkinter import *
import tkinter.filedialog
from tkinter import messagebox
from PIL import ImageTk
from PIL import Image
from io import BytesIO
import os
class IMG_Stegno:
output_image_size = 0
# DataFlair- main frame or start page
def main(self, root):
root.title('Image Stenography Program')
root.geometry('500x600')
root.resizable(width=False, height=False)
root.config(bg='#e3f4f1')
frame = Frame(root)
frame.grid()
title = Label(frame, text='DataFlair Image Steganography')
title.config(font=('Times new roman', 25, 'bold'))
title.grid(pady=10)
title.config(bg='#e3f4f1')
title.grid(row=1)
encode = Button(frame, text="Encode", command=lambda: self.encode_frame1(frame), padx=14, bg='#e3f4f1')
encode.config(font=('Helvetica', 14), bg='#e8c1c7')
encode.grid(row=2)
decode = Button(frame, text="Decode", command=lambda: self.decode_frame1(frame), padx=14, bg='#e3f4f1')
decode.config(font=('Helvetica', 14), bg='#e8c1c7')
decode.grid(pady=12)
decode.grid(row=3)
root.grid_rowconfigure(1, weight=1)
root.grid_columnconfigure(0, weight=1)
# DataFlair- back function to loop back to main screen
def back(self, frame):
frame.destroy()
self.main(root)
# DataFlair- frame for encode page
def encode_frame1(self, F):
F.destroy()
F2 = Frame(root)
label1 = Label(F2, text='Select the Image in which \nyou want to hide text :')
label1.config(font=('Times new roman', 25, 'bold'), bg='#e3f4f1')
label1.grid()
button_bws = Button(F2, text='Select', command=lambda: self.encode_frame2(F2))
button_bws.config(font=('Helvetica', 18), bg='#e8c1c7')
button_bws.grid()
button_back = Button(F2, text='Cancel', command=lambda: IMG_Stegno.back(self, F2))
button_back.config(font=('Helvetica', 18), bg='#e8c1c7')
button_back.grid(pady=15)
button_back.grid()
F2.grid()
# DataFlair- frame for decode page
def decode_frame1(self, F):
F.destroy()
d_f2 = Frame(root)
label1 = Label(d_f2, text='Select Image with Hidden text:')
label1.config(font=('Times new roman', 25, 'bold'), bg='#e3f4f1')
label1.grid()
label1.config(bg='#e3f4f1')
button_bws = Button(d_f2, text='Select', command=lambda: self.decode_frame2(d_f2))
button_bws.config(font=('Helvetica', 18), bg='#e8c1c7')
button_bws.grid()
button_back = Button(d_f2, text='Cancel', command=lambda: IMG_Stegno.back(self, d_f2))
button_back.config(font=('Helvetica', 18), bg='#e8c1c7')
button_back.grid(pady=15)
button_back.grid()
d_f2.grid()
# DataFlair- function to encode image
def encode_frame2(self, e_F2):
e_pg = Frame(root)
myfile = tkinter.filedialog.askopenfilename(
filetypes=([('png', '*.png'), ('jpeg', '*.jpeg'), ('jpg', '*.jpg'), ('All Files', '*.*')]))
if not myfile:
messagebox.showerror("Error", "You have selected nothing !")
else:
my_img = Image.open(myfile)
new_image = my_img.resize((300, 200))
img = ImageTk.PhotoImage(new_image)
label3 = Label(e_pg, text='Selected Image')
label3.config(font=('Helvetica', 14, 'bold'))
label3.grid()
board = Label(e_pg, image=img)
board.image = img
self.output_image_size = os.stat(myfile)
self.o_image_w, self.o_image_h = my_img.size
board.grid()
label2 = Label(e_pg, text='Enter the message')
label2.config(font=('Helvetica', 14, 'bold'))
label2.grid(pady=15)
text_a = Text(e_pg, width=50, height=10)
text_a.grid()
encode_button = Button(e_pg, text='Cancel', command=lambda: IMG_Stegno.back(self, e_pg))
encode_button.config(font=('Helvetica', 14), bg='#e8c1c7')
data = text_a.get("1.0", "end-1c")
button_back = Button(e_pg, text='Encode',
command=lambda: [self.enc_fun(text_a, my_img), IMG_Stegno.back(self, e_pg)])
button_back.config(font=('Helvetica', 14), bg='#e8c1c7')
button_back.grid(pady=15)
encode_button.grid()
e_pg.grid(row=1)
e_F2.destroy()
# DataFlair- function to decode image
def decode_frame2(self, d_F2):
d_F3 = Frame(root)
myfiles = tkinter.filedialog.askopenfilename(
filetypes=([('png', '*.png'), ('jpeg', '*.jpeg'), ('jpg', '*.jpg'), ('All Files', '*.*')]))
if not myfiles:
messagebox.showerror("Error", "You have selected nothing! ")
else:
my_img = Image.open(myfiles, 'r')
my_image = my_img.resize((300, 200))
img = ImageTk.PhotoImage(my_image)
label4 = Label(d_F3, text='Selected Image :')
label4.config(font=('Helvetica', 14, 'bold'))
label4.grid()
board = Label(d_F3, image=img)
board.image = img
board.grid()
hidden_data = self.decode(my_img)
label2 = Label(d_F3, text='Hidden data is :')
label2.config(font=('Helvetica', 14, 'bold'))
label2.grid(pady=10)
text_a = Text(d_F3, width=50, height=10)
text_a.insert(INSERT, hidden_data)
text_a.configure(state='disabled')
text_a.grid()
button_back = Button(d_F3, text='Cancel', command=lambda: self.frame_3(d_F3))
button_back.config(font=('Helvetica', 14), bg='#e8c1c7')
button_back.grid(pady=15)
button_back.grid()
d_F3.grid(row=1)
d_F2.destroy()
# DataFair- function to decode data
def decode(self, image):
image_data = iter(image.getdata())
data = ''
while (True):
pixels = [value for value in image_data.__next__()[:3] +
image_data.__next__()[:3] +
image_data.__next__()[:3]]
binary_str = ''
for i in pixels[:8]:
if i % 2 == 0:
binary_str += '0'
else:
binary_str += '1'
data += chr(int(binary_str, 2))
if pixels[-1] % 2 != 0:
return data
# DataFlair- function to generate data
def generate_Data(self, data):
new_data = []
for i in data:
new_data.append(format(ord(i), '08b'))
return new_data
# DataFlair- function to modify the pixels of image
def modify_Pix(self, pix, data):
dataList = self.generate_Data(data)
dataLen = len(dataList)
imgData = iter(pix)
for i in range(dataLen):
# Extracting 3 pixels at a time
pix = [value for value in imgData.__next__()[:3] +
imgData.__next__()[:3] +
imgData.__next__()[:3]]
for j in range(0, 8):
if (dataList[i][j] == '0') and (pix[j] % 2 != 0):
if (pix[j] % 2 != 0):
pix[j] -= 1
elif (dataList[i][j] == '1') and (pix[j] % 2 == 0):
pix[j] -= 1
if (i == dataLen - 1):
if (pix[-1] % 2 == 0):
pix[-1] -= 1
else:
if (pix[-1] % 2 != 0):
pix[-1] -= 1
pix = tuple(pix)
yield pix[0:3]
yield pix[3:6]
yield pix[6:9]
# DataFlair- function to enter the data pixels in image
def encode_enc(self, newImg, data):
w = newImg.size[0]
(x, y) = (0, 0)
for pixel in self.modify_Pix(newImg.getdata(), data):
# Putting modified pixels in the new image
newImg.putpixel((x, y), pixel)
if (x == w - 1):
x = 0
y += 1
else:
x += 1
# DataFlair- function to enter hidden text
def enc_fun(self, text_a, myImg):
data = text_a.get("1.0", "end-1c")
if (len(data) == 0):
messagebox.showinfo("Alert", "Kindly enter text in TextBox")
else:
newImg = myImg.copy()
self.encode_enc(newImg, data)
my_file = BytesIO()
temp = os.path.splitext(os.path.basename(myImg.filename))[0]
newImg.save(tkinter.filedialog.asksaveasfilename(initialfile=temp, filetypes=([('png', '*.png')]),
defaultextension=".png"))
self.d_image_size = my_file.tell()
self.d_image_w, self.d_image_h = newImg.size
messagebox.showinfo("Success",
"Encoding Successful\nFile is saved as Image_with_hiddentext.png in the same directory")
def frame_3(self, frame):
frame.destroy()
self.main(root)
# GUI loop
root = Tk()
o = IMG_Stegno()
o.main(root)
root.mainloop()