public IEnumerable<Target> GetTargets()
{
Bitmap cur_img = new Bitmap(_cur_img);
Bitmap last_img = new Bitmap(_last_img);
// Data will be copied into here for each X and Y
byte[,] pixels = new byte[cur_img.Width, cur_img.Height];
BitmapData curimg = cur_img.LockBits(
new Rectangle(0, 0, cur_img.Width, cur_img.Height),
ImageLockMode.ReadWrite, PixelFormat.Format24bppRgb);
BitmapData lastimg = last_img.LockBits(
new Rectangle(0, 0, last_img.Width, last_img.Height),
ImageLockMode.ReadWrite, PixelFormat.Format24bppRgb);
Bitmap motion = cur_img; // derive motion from the image that will be used for the motion pixels then copy the data into it
motion.UnlockBits(SubtractPixels(curimg, lastimg, ref pixels));
last_img.UnlockBits(lastimg); // free it
motionpic = motion;
// Pixels now contain where there is movement in x,y
LinkedList<Target> targs = new LinkedList<Target>();
for (int y = 0; y < cur_img.Height; y++) // yes this is messy, look above at the pesudo code for how and what this is doing
for (int x = 0; x < cur_img.Width; x++)
{
int movement = pixels[x, y];
if (movement == 1)
{
MotionHelper helper = this.GetBoundsFromMotion(ref pixels,
new Point(motion.Width, motion.Height),
new Point(x, y));
Target newtarg = new Target(helper.MinX, helper.MinY,
helper.MaxX - helper.MinX,
helper.MaxY - helper.MinY);
newtarg.Shape = helper.Shape;
newtarg.ShapeDetection();
float scalex = newtarg.SizeX / _noisereduction;
float scaley = newtarg.SizeY / _noisereduction;
if (scalex + scaley > 1.75f)
targs.AddLast(newtarg);
else
_BadTargets++;
}
}
return targs;
}
