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 extractData():
algo = extractAlgo.get()
if(algo == "Blowfish" or algo == "LSB"):
raw = lsb.decodeImage(extractInputFile)
if(algo == "Blowfish"):
raw = blowfish_algo.decrypt(raw)
elif(algo == "BPCS"):
raw = bpcs.decode(extractInputFile, "", alpha)
elif(algo == "DCT"):
d = DCT(extractInputFile)
raw = d.DCTDe()
eim=Image.open(extractInputFile)
eim = eim.resize((100, 75), Image.ANTIALIAS)
rphoto=ImageTk.PhotoImage(eim)
rightImage['image'] = rphoto
rphoto.image = rphoto
print(len(raw))
if extractContentType.get() == "Plain text":
extractStatusLbl.configure(text="Success")
outputTexArea.delete('1.0',"end")
outputTexArea.insert('1.0', raw)
elif extractContentType.get() == "File":
with open(extractToFilename, "wb") as target:
target.write(raw)
print(f"Succecfully extracted to: {extractToFilename}")
else:
raise AssertionError("Invalid extract content type")
def decode():
file = request.files["file"]
if file.filename != "":
extension = file.filename.split(".")[1]
filename = "encoded." + extension
file.save(filename) # save file
alpha = 0.45
vslfile = filename
msgfile = "message.txt"
encfile = filename
bpcs.decode(encfile, msgfile, alpha)
with open(msgfile, "r") as file:
data = file.read().replace("\n", "")
return jsonify({"MESSAGE": data})
else:
return jsonify(
{"ERROR": "Please contact the administrator for more information"})
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 sys
import numpy as np
import bpcs as bp
from PIL import Image
if len(sys.argv) < 2:
print("USAGE: {0} <PATH>".format(sys.argv[0]))
print(" PATH: encoded image path")
exit(1)
PATH = sys.argv[1]
blocksize = (8, 8)
ath = 0.45 # complexity threshold
arr = bp.read_image_as_numpy(PATH)
arr = bp.to_binary(arr)
decoded = bp.decode(arr, blocksize, ath)
print("[decoded code]")
print(decoded)
