【摘要】 对传统的边缘检测算子来说 ,虽然本身或在使用方法上都有一定的抑制噪声能力 ,但是效果并不明显 ,所以本文提出一种改进的方向方差算子 ,能够在检测“规则”地物边缘的同时 ,有效的抑制了“不规则”地物的影响。实验中 ,与传统的边缘检测算子进行了比较 ,结果证明本算法是有效的更多还原

【Abstract】 Firstly, by analyzing the spatial features of regular objects and irregular objects, an improved directional variance operator is proposed. With the operator, the paper detects accurately the edges of regular objects, and restraints the effect of irregular objects. On the base of series experiments, it is proved that the algorithm is effective.更多还原