THE NECESSARY AND SUFFICIENT CONDITION AND THE EFFICIENT ALGORITHMS FOR GRADUALLY VARIED FILL

【摘要】 <正> Filling is an important part in pattern recognition and computer vision. In the discrete plane （grid of plane）∑₂, fill means "determination of the region D enclosed by the simple closed curve J which is given beforehand". In other words, if the valuation of the point on the contour J is 1, we want to do a valuation for ∑₂ to make the valuation of the point p be 1 iff point p belongs to D.更多还原