基于噪声检测的彩色图像滤波算法

对于被脉冲噪声污染的彩色图像,提出了基于噪声检测的彩色图像滤波算法。运用脉冲噪声检测器,估计出图像中的噪声像素,应用后续滤波算法,只对检测出来的噪声像素进行滤波,而对非噪声像素(即信号像素)保持其值不变。并对基于相似度的自适应滤波算法加以改进,作为后续的滤波算法。实验结果表明,提出的滤波算法与传统滤波算法相比,在有效消除噪声的同时,更能够保留图像中的边缘和细节特征。

Filtering Algorithm for Color Images Based on Noise Detection

As to the color images corrupted by impulse noise,we propose filtering algorithms for color images based on noise detection.Firstly,an impulse detector is presented to find out all pixels that are considered as noise before filtering.Then,if a pixel is considered as noise,it will be replaced by a pixel in the neighborhood which is noise-free during filtering procedure later.Otherwise,it is unchanged.The self-adaptive algorithm based on similarities is improved as the filtering algorithms later.As demonstrat...