private void button2_Click(object sender, EventArgs e)
{
button1.Enabled = true;
button2.Enabled = false;
button3.Enabled = true;
incomingData = null;
serverSocket.Start();
Console.WriteLine("Server Started");
clientSocket = serverSocket.AcceptTcpClient();
Console.WriteLine("Accept connection from client");
BinaryFormatter bformatter = new BinaryFormatter();
NetworkStream networkStream = clientSocket.GetStream();
incomingData = (PacketData)bformatter.Deserialize(networkStream);
Console.WriteLine(incomingData.stegoLength);
SecretData tempSecretDt = new SecretData();
tempSecretDt.SecretImage = incomingData.secretImage;
tempSecretDt.SecretText = incomingData.secretText;
byte[] secretByte = Converter.secretDataToByte(tempSecretDt);
Console.WriteLine(secretByte.Length);
ElementRGB carrier = Converter.imageToElementRGB(incomingData.realImage);
temp = Steganography.CreateStegoImage(carrier, secretByte, (Bitmap)incomingData.realImage);
}
public static SecretData ExtractSecretData(Image StegoImage, int stegoLength)
{
//Operasi extraksi secret data di sini
List <int> embededData = new List <int>();
int s1, s2, s3;
ElementRGB rgbData = Converter.imageToElementRGB(StegoImage);
for (int i = 0; i < stegoLength; i++)
{
s1 = rgbData.Red.ElementAt(i) % 3;
s2 = rgbData.Green.ElementAt(i) % 3;
s3 = rgbData.Blue.ElementAt(i) % 3;
embededData.Add(s1);
embededData.Add(s2);
embededData.Add(s3);
}
//while ((embededData.Count % 8) != 0)
embededData.RemoveAt(embededData.Count - 1);
int[] base3Data = new int[embededData.Count];
for (int i = 0; i < embededData.Count; i++)
{
base3Data[i] = embededData.ElementAt(i);
}
int[] base2Data = Converter.base3ToBase2(base3Data);
BitArray binaryData = Converter.NumericToBinary(base2Data);
byte[] byteData = Converter.ToByteArray(binaryData);
SecretData secretData = Converter.byteToSecretData(byteData);
return(secretData);
}
private void btnCreateStegoImage_Click(object sender, EventArgs e)
{
//data = new SecretData();
data.SecretImage = new Bitmap(pictureBox2.Image);
byte[] secretByte = Converter.secretDataToByte(data);
ElementRGB carrier = Converter.imageToElementRGB(pictureBox1.Image);
Console.WriteLine(secretByte.Length);
pictureBox3.Image = Steganography.CreateStegoImage(carrier, secretByte, (Bitmap)pictureBox1.Image);
stegoLength = carrier.StegoLength;
pictureBox3.SizeMode = PictureBoxSizeMode.StretchImage;
pictureBox3.Refresh();
btnSendImage.Enabled = true;
MessageBox.Show("Stego Image Created");
}
public static Image elementRGBToImage(ElementRGB data)
{
Bitmap img = new Bitmap(data.width, data.height, System.Drawing.Imaging.PixelFormat.Format24bppRgb);
int i = 0;
for (int x = 0; x < data.width; x++)
{
for (int y = 0; y < data.height; y++)
{
Color imageColor = Color.FromArgb(data.Red.ElementAt(i), data.Green.ElementAt(i), data.Blue.ElementAt(i));
img.SetPixel(x, y, imageColor);
i++;
}
}
return(img);
}
public static ElementRGB imageToElementRGB(Image img)
{
ElementRGB raw = new ElementRGB();
Bitmap inputImage = new Bitmap(img);
Color pixelColor = new Color();
raw.width = inputImage.Width;
raw.height = inputImage.Height;
raw.Red = new List <int>();
raw.Green = new List <int>();
raw.Blue = new List <int>();
for (int x = 0; x < inputImage.Width; x++)
{
for (int y = 0; y < inputImage.Height; y++)
{
pixelColor = inputImage.GetPixel(x, y);
if (int.Parse(pixelColor.R.ToString()) != 0)
{
if (int.Parse(pixelColor.R.ToString()) == 255)
{
raw.Red.Add(int.Parse(pixelColor.R.ToString()) - 2);
}
else
{
raw.Red.Add(int.Parse(pixelColor.R.ToString()));
}
}
else
{
raw.Red.Add(2);
}
if (int.Parse(pixelColor.G.ToString()) != 0)
{
if (int.Parse(pixelColor.G.ToString()) == 255)
{
raw.Green.Add(int.Parse(pixelColor.G.ToString()) - 2);
}
else
{
raw.Green.Add(int.Parse(pixelColor.G.ToString()));
}
}
else
{
raw.Green.Add(2);
}
if (int.Parse(pixelColor.B.ToString()) != 0)
{
if (int.Parse(pixelColor.B.ToString()) == 255)
{
raw.Blue.Add(int.Parse(pixelColor.B.ToString()) - 2);
}
else
{
raw.Blue.Add(int.Parse(pixelColor.B.ToString()));
}
}
else
{
raw.Blue.Add(2);
}
}
}
return(raw);
}
public static Image CreateStegoImage(ElementRGB rawData, byte[] secretData, Bitmap carrierImage)
{
Bitmap StegoImage = carrierImage;
BitArray secretBits = Converter.ToBitArray(secretData);
int[] numericBits = Converter.BinaryToNumeric(secretBits);
int[] base3Data = Converter.base2ToBase3(numericBits);
//Operasi Steganography di sini
temp = new int[base3Data.Length + 1];
int[] embededData = new int[base3Data.Length + 1];
for (int i = 0; i < base3Data.Length; i++)
{
embededData[i] = base3Data[i];
temp[i] = base3Data[i];
}
embededData[base3Data.Length] = 0;
int index = 0;
int ptr = 0;
int f1, f2, f3;
for (int x = 0; x < rawData.width; x++)
{
for (int y = 0; y < rawData.height; y++)
{
if (ptr + 2 <= base3Data.Length)
{
//Manipulasi Pixel//////////
//MessageBox.Show(rawData.Red.ElementAt(index) + " " + rawData.Green.ElementAt(index) + " " + rawData.Blue.ElementAt(index));
f1 = rawData.Red.ElementAt(index) % 3;
f2 = rawData.Green.ElementAt(index) % 3;
f3 = rawData.Blue.ElementAt(index) % 3;
///////////////////////////////////////////////////////////////////////////////
if (f1 == embededData.ElementAt(ptr))
{
rawData.Red[index] = rawData.Red.ElementAt(index);
}
else
{
rawData.Red[index] = rawData.Red.ElementAt(index) + embededData.ElementAt(ptr) - f1;
}
/////////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////////
if (f2 == embededData.ElementAt(ptr + 1))
{
rawData.Green[index] = rawData.Green.ElementAt(index);
}
else
{
rawData.Green[index] = rawData.Green.ElementAt(index) + embededData.ElementAt(ptr + 1) - f2;
}
/////////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////////
if (f3 == embededData.ElementAt(ptr + 2))
{
rawData.Blue[index] = rawData.Blue.ElementAt(index);
}
else
{
rawData.Blue[index] = rawData.Blue.ElementAt(index) + embededData.ElementAt(ptr + 2) - f3;
}
/////////////////////////////////////////////////////////////////////////////////
//MessageBox.Show(f1+" "+embededData.ElementAt(ptr)+" "+f2+" "+embededData.ElementAt(ptr+1)+" "+f3+" "+embededData.ElementAt(ptr+2)+"\n"+rawData.Red.ElementAt(index)+" "+rawData.Green.ElementAt(index)+" "+rawData.Blue.ElementAt(index));
ptr += 3;
////////////////////////////
Color imageColor;
//if (rawData.Blue.ElementAt(index) != -1 && rawData.Red.ElementAt(index)!= -1 && rawData.Green.ElementAt(index)!=-1)
{
imageColor = Color.FromArgb(rawData.Red.ElementAt(index), rawData.Green.ElementAt(index), rawData.Blue.ElementAt(index));
StegoImage.SetPixel(x, y, imageColor);
}
index++;
}
}
}
rawData.StegoLength = index;
return(StegoImage);
}
