private static bool HasWhiteInVerticalLine(Bitmap source, int posXInImage)
{
bool hasWhite = false;
if (posXInImage >= source.Width)
return false;
int greys = source.Height / 3;
for (int h = 0; h < source.Height; h++)
{
if (source.GetPixel(posXInImage, h).R == 255)
{
hasWhite = true;
break;
}
else if (source.GetPixel(posXInImage, h).R > 0)
{
greys--;
if (greys == 0)
{
hasWhite = true;
break;
}
}
}
return hasWhite;
}