Code Steganography

This is my code I used to hide the message in the images. The algorithm I made it thanks to my classmate Alejandro Avendaño thats why is very similar, well here is the code

	import Image
	import sys, os
	from numpy import *
	message=list()
	msgDec=list()
	cont=0
	rgb=0#to know which pixel was used
	#convert message into decimal
	def msg_dec(file):
	for words in file.readlines():
	if len(words)==0:
	continue
	#ignore "\n"
	words = words.rstrip("\n")
	for letter in words:
	message.append(letter)
	#convert to ascii
	for letter in msg:
	number = ord(letter)
	msgDec.append(number)
	def algorithm(width,height,pixels):
	area = width * height
	decSize = int(len(msgDec))
	range = area/decSize
	condition = 0
	aux = 0
	z = range/4
	char = 0
	for i in range(width):
	for j in range (height):
	(p1,p2,p3)=pixels[i,j]#get pixels of the image
	#just one time
	if condition == 0:
	mod = p3 % 7
	if mod == 1:
	hide = size
	pixels[i,j] = (hide,p2,p3) #hide in the image
	condition = condition + 1 #do it just one time
	else:
	if aux < range:
	if cont > 0: #one more character?
	#red pixel
	if rgb == 0:
	hide = conver[char]
	pixels[i,j] = (hide,p2,p3)
	char = char + 1
	cont = cont - 1 #total letters - 1
	aux = range
	#green pixel
	if rgb == 1:
	hide = conver[char]
	pixels[i,j] = (p1,hide,p3)
	char = char + 1
	cont = cont - 1 #total letters - 1
	aux = range
	#blue pixel
	if rgb == 2:
	hide = conver[char]
	pixels[i,j] = (hide,p2,hide)
	char = char + 1
	cont = cont - 1 #total letters - 1
	aux = range
	if manage >= range: #next pixel
	range = range + z/2
	aux = 0
	manage = manage +1# to control the jumps to the next pixel
	if rgbb == 0:
	rgbb = 1
	elif rgbb == 1:
	rgbb = 2
	else:
	rgbb = 0
	def main(image,text):
	file = open(archivo,"r")
	msg_dec(file)
	img = Image.open(image)
	width,height = img.size()
	pixels = img.load()
	algorithm(width,height,pixels)
	img = save("cpu.jpg")
	#arg1 = image, arg2 = .txt
	main(sys.argv[1],sys.argv[2])

view raw Steganography.py hosted with ❤ by GitHub

And this was my first attempt but but I got stuck :C in this attempt I was manipulating binary

	import Image
	import sys, os
	from numpy import *
	def msg_bits(text):
	file = open(text,'r')
	msg = list()
	ascii = list()
	bitsMsg = list()
	for words in file.readlines():
	if len(words)==0:
	continue
	#ignore "\n"
	words = words.rstrip("\n")
	for letter in words:
	msg.append(letter)
	#convert to ascii
	for letter in msg:
	number = ord(letter)
	ascii.append(number)
	#convert to binary
	for number in ascii:
	bits = bin(number)
	bits = bits[2:]
	if number == 32:
	bits = '0'+bits
	bitsMsg.append(bits)
	return bitsMsg
	def bits_img(image,width,height):
	bitsImg = list()
	for i in range(width):
	for j in range(height):
	(r,g,b) = image.getpixel((i,j))
	bitsR=bin(r)
	bitsR = bitsR[2:]
	bitsG=bin(g)
	bitsG = bitsG[2:]
	bitsB=bin(b)
	bitsB = bitsB[2:]
	bitsImg.append(bitsR)
	bitsImg.append(bitsG)
	bitsImg.append(bitsB)
	return bitsImg
	def cypher(img, msg):
	for i in range(len(msg)):
	byte = msg[i]
	for j in range(len(byte)):
	change = list(img.pop(0))
	bit = byte[j]
	change.pop()
	change.append(bit)
	img.insert(j,change)
	return img
	def main(image,text):
	img=Image.open(image)
	rgb_im=img.convert('RGB')
	width,height=rgb_im.size
	bitsMsg= msg_bits(text)
	bitsImg= bits_img(rgb_im, width,height)
	cy= cypher(bitsImg, bitsMsg)
	#arg1 = image, arg2 = .txt
	main(sys.argv[1],sys.argv[2])
	#main(sys.argv[1])

view raw img.py hosted with ❤ by GitHub