LIU Hui, WANG Wen-zhe, XU Sheng-lei. Salt and pepper noise filtering algorithm for color images based on color difference measurement in uniform space[J]. 2018, (6): 146-149.
LIU Hui, WANG Wen-zhe, XU Sheng-lei. Salt and pepper noise filtering algorithm for color images based on color difference measurement in uniform space[J]. 2018, (6): 146-149. DOI: 10.13873/j.1000-9787(2018)06-0146-04.
基于均匀空间色差度量的彩色图像椒盐噪声滤波算法
摘要
研究基于均匀空间的彩色图像椒盐噪声滤除方法
针对传统中值滤波会引入其他色彩的缺点
提出了一种符合人眼对色彩识别能力的矢量排序方法。在Lab空间下
像素点之间的欧几里得距离与实际色差成正比
据此建立矢量排序
依据排序结果利用中值滤波方法进行去噪
并与HSV
VMF和BVDF算法等其他滤波方法进行了对比研究
实验结果表明:所提方法不但能够有效改善图像质量
而且能够更好地保护图像的色彩信息
较传统彩色图像去噪算法有较好的优越性。
Abstract
A method of color image salt and pepper noise filtering based on uniform space is proposed. To overcome the weakness of traditional median filtering may bring in other colors
a vector sorting method which is consistent with human’s ability of color recognition is proposed. In the Lab space
the Euclidean distance between pixels points is proportional to the actual color difference
on which the vector sorting is established. According to sorting result
as criteria uses method of median filtering to remove the noise. The results are compared with other filtering methods such as HSV
VMF andBVDF. Experimental results show that the method can not only improve image quality
but can protect color information of image better
and it is better than the traditional denoising algorithm of color image.