cv.jit.open An "open" operation is simply an "erode" followed by a "dilate". An "open" operation is simply an "erode" followed by a "dilate". This results in a slight widening of holes and openings, hence the name. It gets rid of smaller specks of noise while retaining the general size of the input objects, unlike "erode" alone.	from the library : cv.jit Format : External Environment : jitter / max / msp freeware Max 4.x http://www.iamas.ac.jp/~jovan02/cv/download.html