def ExtractPayload(file, option, alpha, message=None):
if option == 1:
# output = open("decoded_message.txt", "x")
bpcs.decode(file, "decoded_message.txt", alpha)
with open('decoded_message.txt') as file:
data = str(file.read())
return data
# decodedoutput.insert(tk.END, data)
elif option == 2 and message is not None:
pic = "encoded_file.png" # +file.split('.')[1]
bpcs.encode(file, message, pic, alpha)
else:
print("Invalid Option")
return None
def encode():
file = request.files["file"]
message = request.form.get("name")
if file.filename != "":
extension = file.filename.split(".")[1]
filename = "original." + extension
file.save(filename) # save file
alpha = 0.45
vslfile = filename
msgfile = "message.txt"
encfile = "encoded.jpeg"
bpcs.encode(vslfile, msgfile, encfile, alpha)
return send_file("encoded.jpeg", mimetype="image/jpeg")
else:
return jsonify(
{"ERROR": "Please contact the administrator for more information"})
def embedImage():
algo = variable.get()
inp = getSecretContent()
out_f, out_ext = embedInputFile.split(".")
out_f = out_f + "_" + algo + ".png"
fileName = os.path.basename(out_f)
fileName = outFolder + "/" + fileName
if(algo == "LSB"):
lsb.encodeImage(embedInputFile, inp, fileName)
elif(algo == "Blowfish"):
#encrypt the input data
inp = blowfish_algo.encrypt(inp)
print(type(inp))
lsb.encodeImage(embedInputFile, inp, fileName)
elif(algo == "BPCS"):
global alpha
bpcs.encode(embedInputFile, inp, fileName, alpha)
elif(algo == "DCT"):
d = DCT(embedInputFile)
d.DCTEn(inp, fileName)
lim=Image.open(embedInputFile)
lim = lim.resize((100, 75), Image.ANTIALIAS)
lphoto=ImageTk.PhotoImage(lim)
inImage['image'] = lphoto
lphoto.image = lphoto
oim=Image.open(embedInputFile)
oim = oim.resize((100, 75), Image.ANTIALIAS)
ophoto=ImageTk.PhotoImage(oim)
emImage['image'] = ophoto
ophoto.image = ophoto
embedStatusLbl.configure(text="Success")
print("Embed Success")
def StartDecrypt(self):
alpha = 0.45
vslfile = 'C:/Users/areev/OneDrive/Documents/GitHub/bpcs/examples/vessel.png'
msgfile = 'C:/Users/areev/OneDrive/Documents/GitHub/bpcs/examples/message.txt' # can be any type of file
encfile = 'C:/Users/areev/OneDrive/Documents/GitHub/bpcs/examples/encoded.png'
msgfile_decoded = 'C:/Users/areev/OneDrive/Documents/GitHub/bpcs/examples/tmp.txt'
#bpcs.capacity(vslfile, alpha) # check max size of message you can embed in vslfile
#img = cv2.imread('C:/Users/areev/OneDrive/Documents/GitHub/bpcs/examples/payload.png')
#img3 = cv2.imread('C:/Users/areev/OneDrive/Documents/GitHub/bpcs/examples/vessel.png')
#vslfile = cv2.imencode('.png', img3)[1].tobytes()
#type(vslfile)
#msgfile = cv2.imencode('.png', img)[1].tobytes()
#type(msgfile)
bpcs.encode(vslfile, msgfile, encfile,
alpha) # embed msgfile in vslfile, write to encfile
bpcs.decode(encfile, msgfile_decoded,
alpha) # recover message from encfile
path = "C:/Users/areev/OneDrive/Documents/GitHub/bpcs/examples/"
imgpath1 = path + "vessel.png"
imgpath2 = path + "encoded.png"
img1 = cv2.imread(imgpath1, 1)
img2 = cv2.imread(imgpath2, 1)
img1 = cv2.cvtColor(img1, cv2.COLOR_RGB2BGR)
img2 = cv2.cvtColor(img2, cv2.COLOR_RGB2BGR)
titles = ['Cover Image', 'Stego Object']
images = [img1, img2]
for i in range(2):
plt.subplot(1, 2, i + 1)
plt.imshow(images[i])
plt.title(titles[i])
plt.xticks([])
plt.yticks([])
plt.show()
import bpcs alpha = 0.45 vslfile = 'Temp\\raw_image1.png' msgfile = 'AnyTextGreaterThan300Chars' # can be any type of file encfile = 'Temp\\raw_image1_test_bpcs.png' msgfile_decoded = 'Temp\\tmp.txt' bpcs.encode(vslfile, msgfile, encfile, alpha) # embed msgfile in vslfile, write to encfile msg = bpcs.decode(encfile, msgfile_decoded, alpha) # recover message from encfile print(msg)
import bpcs
alpha = 0.45
vslfile = "image.jpg"
msgfile = "message.txt"
encfile = "output.jpeg"
# msgfile_decoded = "tmp.txt"
bpcs.encode(vslfile, msgfile, encfile, alpha)
# embed msgfile in vslfile, write to encfile
# bpcs.decode(encfile, msgfile_decoded, alpha) # recover message from encfile
# app.py
from flask import Flask, request, jsonify, render_template, send_file
import os
import bpcs
app = Flask(__name__)
@app.route("/encode", methods=["POST"])
def encode():
file = request.files["file"]
message = request.form.get("name")
if file.filename != "":
extension = file.filename.split(".")[1]
filename = "original." + extension
file.save(filename) # save file
alpha = 0.45
vslfile = filename
import sys
import numpy as np
import bpcs as bp
from PIL import Image
if len(sys.argv) < 3:
print("USAGE: {0} <IPATH> <SPATH>".format(sys.argv[0]))
print(" IPATH: image path")
print(" SPATH: secret file path")
exit(1)
IPATH = sys.argv[1]
SPATH = sys.argv[2]
blocksize = (8, 8)
ath = 0.45 # complexity threshold
# prepare secret blocks
arr = bp.read_message_as_numpy(SPATH, blocksize)
arr = bp.to_binary(arr)
secret_blocks, conj_map = bp.secret_blocks(arr, blocksize, ath)
# encode
arr = bp.read_image_as_numpy(IPATH)
arr = bp.to_binary(arr)
arr = bp.encode(arr, secret_blocks, conj_map, blocksize, ath)
arr = bp.to_image(arr)
Image.fromarray(np.uint8(arr)).show()
Image.fromarray(np.uint8(arr)).save("images/encoded.png")