private obj search(int num)
{
obj x = this.rememberList.Find(e => e.id == num);
if (x != null)
{
return x;
}
else
{
return null;
}
}
private void button2_Click(object sender, EventArgs e)
{
Bitmap bmp = new Bitmap(pictureBox1.Image);
int[,] label = new int[bmp.Height, bmp.Width];
int[,] upper = new int[bmp.Height, bmp.Width];
int[,] left = new int[bmp.Height, bmp.Width];
this.rememberList = new List<obj>();
obj temp;
int index = 1;
//Nested For loops for horizontal Scan
for (int i = 1; i < bmp.Height-1; i++)
{
for(int j = 1; j < bmp.Width-1; j++)
{
if (bmp.GetPixel(j, i) == Color.Black || bmp.GetPixel(j, i).R < 10)
{
upper[i, j] = label[i - 1, j];
left[i, j]= label[i, j - 1];
if(upper[i,j] == 0 && left[i,j] == 0)
{
label[i, j] = index;
index++;
}else if (upper[i, j] == 0 && left[i, j] != 0 || upper[i, j] != 0 && left[i, j] == 0)
{
if(upper[i,j] != 0)
{
label[i, j] = upper[i, j];
//Console.WriteLine("UHit");
}
else
{
label[i, j] = left[i, j];
//Console.WriteLine("LHit");
}
}
else if(left[i,j] == upper[i, j] && left[i,j] != 0 && upper[i,j] != 0)
{
//Console.WriteLine("Same");
label[i, j] = left[i, j];
}else if (left[i,j] != upper[i,j] && left[i, j] != 0 && upper[i, j] != 0)
{
if (upper[i,j] < left[i, j])
{
label[i, j] = upper[i, j];
temp = search(upper[i, j]);
//bool overwritten = deepSearch(upper[i,j]);
if (temp == null )
{
temp = new obj();
temp.id = upper[i, j];
temp.list.Add(left[i, j]);
rememberList.Add(temp);
}
else if(temp != null)
{
if (!(temp.list.Contains(left[i, j])))
{
temp.list.Add(left[i, j]);
}
}
} else
{
label[i, j] = left[i, j];
temp = search(left[i, j]);
//bool overwritten = deepSearch(left[i, j]);
if (temp == null )
{
temp = new obj();
temp.id = left[i, j];
temp.list.Add(upper[i, j]);
rememberList.Add(temp);
}
else if(temp != null)
{
if (!(temp.list.Contains(upper[i,j])))
{
temp.list.Add(upper[i,j]);
}
}
}
}
}
}
}
Console.WriteLine(rememberList.Count);
for (int i = rememberList.Count-1 ; i >= 0; i--)
{
//Console.WriteLine(rememberList[0].id);
label = indexHandeler(rememberList[i].id, rememberList[i].list, label, bmp.Height, bmp.Width);
}
//int numberOfColors =
IEnumerable<int> max = label.Cast<int>().Distinct();
Console.WriteLine("Number of Objects:\t "+(max.Count()-1));
label1.Text = "Objects ="+ (max.Count() - 1);
int c = label.Cast<int>().Max();
Color[] ColorList = new Color[c];
Random rand = new Random();
for(int i = 0; i < c-1; i++)
{
ColorList[i] = Color.FromArgb(rand.Next(0,256), rand.Next(0, 256), rand.Next(0, 256));
}
for(int y = 0; y < bmp.Height; y++)
{
for(int x = 0; x < bmp.Width; x++)
{
if(label[y,x] != 0)
{
bmp.SetPixel(x, y, ColorList[label[y,x]-1]);
}
}
}
//Console.WriteLine("Number of detected objects:\t"+ColorList.Count());
pictureBox1.Image = bmp;
}
