Random-valued impulse noise detector by shape windows <Abstract> In this paper, we propose a new random-valued impulse noise detecter from images using some shape windows. In our method, we use directional windows allowing continuity of edge. In our system, an window that is selected from multi-windows includes flat region.Thus, selected window has low variation in pixel values, and random-valued impulse noise moves to the both ends of order statistics. Therefore noise detection in selected window is easy. Consequently proposed method reduces undetected noise pixel without increasing mis-detection. Extensive simulations indicate that proposed method performs significantly better than traditional methods. |