根据空间距离与人类心理感觉的关系,提出一个基于心理距离的加权公式,并结合传统的中值滤波器,构造出一种基于空间距离加权的自适应中值滤波器.实验结果表明,本文的中值滤波器与传统的中值滤波器及其它典型的改进型中值滤波器相比,在抑制脉冲噪声、保护图像细节或边缘方面,具有更好的性能和效果.
According to the relationship between spatial distances and human psychological perception, a new weighting function is presented based on the psychological distance. Combined with the standard median filter (SMF), a kind of adaptive median filter is proposed. The experimental results show that the proposed filter , compared with the SMF and several other representative improved median filters, achieves better filtering effect on noise attenuation, and edge or detail preservation.