public char[] GetText()
{
string ret = "";
int msgSize = this.GetMsgSize();
int numOfBits = msgSize * 8;
List <bool> bits = new List <bool>();
byte[] bytes;
Color clr = new Color();
bool done = false;
for (int i = this.w; i < this.bmp.Width; i++)
{
for (int j = this.h + 1; j < this.bmp.Height; j++)
{
if (numOfBits < 3)
{
clr = this.bmp.GetPixel(i, j);
if (numOfBits == 2)
{
bits.Add(BitManipulator.GetBit(clr.R, 1));
bits.Add(BitManipulator.GetBit(clr.G, 1));
}
else if (numOfBits == 1)
{
bits.Add(BitManipulator.GetBit(clr.R, 1));
}
done = true;
numOfBits -= 3;
break;
}
else
{
clr = this.bmp.GetPixel(i, j);
bits.Add(BitManipulator.GetBit(clr.R, 1));
bits.Add(BitManipulator.GetBit(clr.G, 1));
bits.Add(BitManipulator.GetBit(clr.B, 1));
numOfBits -= 3;
}
}
if (done)
{
break;
}
}
//bytes = BitManipulator.BoolToByte(bits.ToArray());
//char[] charArray = Encoding.ASCII.GetString(bytes).ToCharArray();
//Array.Reverse(charArray);
byte[] ints = BitManipulator.BoolToByte(bits.ToArray());
//char[] chars = BitManipulator.IntsToChar(ints);
char[] chars = BitManipulator.BytesToChars(ints);
Array.Reverse(chars);
return(chars);
}
public int GetMsgSize()
{
List <bool> bits = new List <bool>();
bool done = false;
int count = 0;
Color clr;
int i = 0, j = 0;
for (i = 0; i < bmp.Width; i++)
{
for (j = 0; j < bmp.Height; j++)
{
clr = bmp.GetPixel(i, j);
if (count == 30)
{
bits.Add(BitManipulator.GetBit(clr.R, 1));
bits.Add(BitManipulator.GetBit(clr.G, 1));
done = true;
break;
}
else
{
clr = bmp.GetPixel(i, j);
bits.Add(BitManipulator.GetBit(clr.R, 1));
bits.Add(BitManipulator.GetBit(clr.G, 1));
bits.Add(BitManipulator.GetBit(clr.B, 1));
count += 3;
}
}
if (done)
{
break;
}
}
//byte[] bytes = BitManipulator.BoolToByte(bits.ToArray());
this.w = i;
this.h = j;
return(BitManipulator.BoolToInt(bits.ToArray())[0]);
}