And some OpenCV tutorials on those same operations: http://docs.opencv.org/2.4/doc/tutorials/imgproc/opening_closing_hats/opening_closing_hats.html http://docs

And some OpenCV tutorials on those same operations: http://docs.opencv.org/2.4/doc/tutorials/imgproc/opening_closing_hats/opening_closing_hats.html http://docs.opencv.org/2.4/doc/tutorials/imgproc/opening_clo... http://docs.opencv.org/2.4/doc/tutorials/imgproc/erosion_dilatation/erosion_dilatation.html http://docs.opencv.org/2.4/doc/tutorials/imgproc/erosion_dil...