hello,
I can't test your patch because it uses some [smooth] I don't have with vanilla.
btw, pix_opencv_contour is useful to detect hand by finding convexity defects and replaces all old pix_opencv_contour_*
it is highly customizable.
also pix_opecv_backgroundsubtractor is very useful to do background subtraction in complex situation (where the light / color change quite quickly)
but it needs a recent opencv installation
also it is very CPU expensive, but you can use it on GPU thanks to OpenCL
and some dedicated hardware like leapmotion or Kinect for Windows (the desktop version) are easier to setup for testing purpose.
+
a