protected void Count_Pixels_On_A_Line_Change_It_To_Red(int j, Line line)
{
for (int i = line.FirstPixel; i <= line.LastPixel; i++)
{
if (CompareColors(image.GetPixel(i, j), Color.Black))
{
//To count black pixel, then set it to red
SizeOfShape++;
image.SetPixel(i, j, Color.Red);
//To find out if a black pixel on top of red one, then store it to BlackPixelList
if (j > 0 && CompareColors(image.GetPixel(i, j - 1), Color.Black))
{
var cell = new BlackPixel(i, j - 1);
BlackPixelList.Add(cell);
}
if (BlackPixelList.Count > 0)
{
//To find out if this pixel is in BlackPixelList, then remove it
var cell = new BlackPixel(i, j);
if (BlackPixelList.Contains(cell))
{
BlackPixelList.Remove(cell);
}
}
}
//End when it is while pixel
else if (CompareColors(image.GetPixel(i, j), Color.White))
{
break;
}
}
}
protected Line Find_Start_End_Pixel_On_A_Line(BlackPixel cell)
{
var pict = image.Size;
var line = new Line();
if (CompareColors(image.GetPixel(cell.X, cell.Y), Color.Black))
{
//Find first black pixel in a row
for (int b = cell.X; b >= 0; b--)
{
if (CompareColors(image.GetPixel(b, cell.Y), Color.Black))
{
line.FirstPixel = b;
line.LastPixel = b;
}
else
{
break;
}
}
//Find last black pixel in a row
for (int e = cell.X; e < pict.Width; e++)
{
if (CompareColors(image.GetPixel(e, cell.Y), Color.Black))
{
line.LastPixel = e;
}
else
{
break;
}
}
}
return(line);
}
