static Bitmap modify(Bitmap im, ColorRange redRange, ColorRange greenRange, int[,] idMat, ref int currId)
{
Bitmap res = new Bitmap(im.Width, im.Height);
for (int i = 1; i < im.Width-1; ++i)
{
for (int j = 1; j < im.Height-1; ++j)
{
if (redRange.inRange(im.GetPixel(i, j)))
//if (im.GetPixel(i, j).isRed())
{
res.SetPixel(i, j, Color.red);
int idToUse = setId(im, idMat, ref currId, i, j);
dilate(im, ref res, Color.red, i, j, 10, idMat, idToUse);
}
else if (greenRange.inRange(im.GetPixel(i, j)))
//else if (im.GetPixel(i, j).isGreenLight())
{
res.SetPixel(i, j, Color.green);
int idToUse = setId(im, idMat, ref currId, i, j);
dilate(im, ref res, Color.green, i, j, 10, idMat, idToUse);
}
}
}
return res;
}
static void dilate(Bitmap orig, ref Bitmap res, Color paint, int x, int y, int w, int[,] idMat, int currId)
{
Color pixel = orig.GetPixel(x, y);
ColorRange range = new ColorRange();
int delta = 30;
range.redMin = (int) (Math.Max(pixel.R - delta, 0));
range.redMax = (int)(Math.Min(pixel.R + delta, 255));
range.greenMin = (int)(Math.Max(pixel.G - delta, 0));
range.greenMax = (int)(Math.Min(pixel.G + delta, 255));
range.blueMin = (int)(Math.Max(pixel.B - delta, 0));
range.blueMax = (int)(Math.Min(pixel.B + delta, 255));
int startX = Math.Max(0, x - w);
int endX = Math.Min(orig.Width, x + w);
int startY = Math.Max(0, y - w);
int endY = Math.Min(orig.Height, y + w);
for (int i = startX; i < endX; ++i)
{
for (int j = startY; j < endY; ++j)
{
if (idMat[i, j] != 0) continue;
if (range.inRange(orig.GetPixel(i, j)))
{
res.SetPixel(i, j, paint);
idMat[i, j] = currId;
}
}
}
}