/// <summary>
/// Encodes message into an image using the MessageArray and the ImageBMP properties as inputs.
/// </summary>
public void InsertMessage()
{
//int[] colorArr = GetArrayOfColors();
int count = 0;
int[] mess = ToOneDemArray(MessageArray);
for (int x = 0; x < ImageBMP.Width; x++)
{
for (int y = 0; y < ImageBMP.Height; y++)
{
Color pixelColor = ImageBMP.GetPixel(x, y);
Color newColor = MakeSpaceInPixel(pixelColor);
int red, green, blue;
if (count < mess.Length)
{
red = newColor.R + mess[count];
}
else
{
red = newColor.R;
}
count++;
if (count < mess.Length)
{
green = newColor.G + mess[count];
}
else
{
green = newColor.G;
}
count++;
if (count < mess.Length)
{
blue = newColor.B + mess[count];
}
else
{
blue = newColor.B;
}
count++;
newColor = Color.FromArgb(red, green, blue);
ImageBMP.SetPixel(x, y, newColor);
}
}
}
/// <summary>
/// Decodes message in image using the ImageBMP.
/// </summary>
public void ExtractMessage()
{
List <int> messNums = new List <int>();
for (int x = 0; x < ImageBMP.Width; x++)
{
for (int y = 0; y < ImageBMP.Height; y++)
{
Color pixelColor = ImageBMP.GetPixel(x, y);
messNums.Add(BitBlock.GetMod(pixelColor.R, BlockSize));
messNums.Add(BitBlock.GetMod(pixelColor.G, BlockSize));
messNums.Add(BitBlock.GetMod(pixelColor.B, BlockSize));
}
}
MessageArray = ToTwoDemArray(messNums.ToArray());
string temp = BitBlock.BinaryToMessage(MessageArray, BlockSize);
Message = temp;
}
private int[] GetArrayOfColors()
{
List <Color> pixelList = new List <Color>();
List <int> colorList = new List <int>();
for (int x = 0; x < ImageBMP.Width; x++)
{
//Gets X coordinate
for (int y = 0; y < ImageBMP.Height; y++)
{
pixelList.Add(ImageBMP.GetPixel(x, y));
}
}
foreach (Color pixel in pixelList)
{
colorList.Add(pixel.R);
colorList.Add(pixel.G);
colorList.Add(pixel.B);
}
return(colorList.ToArray());
}
