【摘要】 针对高密度的椒盐噪声图像,提出了一种基于中值滤波和均值滤波的高效的二次去噪方法 (Two-Step Denoising Algorithm,TSDA).数值试验表明,TSDA算法在保持图像边缘的同时能高效地去除高密度的椒盐噪声,较SMF方法和NDBA(New Decision-Based Algorithm)方法在检验指标MSE、PSNR和IEF上都有较大改进.更多还原

【Abstract】 In order to remove the high density of salt &pepper noise,this paper proposes an efficient two-step denoising algorithm(TSDA),which is based the standard median filtering and the mean filter.Numerical experiment shows that TSDA is able to preserve edges and remove the high density salt &pepper noise efficiently. TSDA has more improvement on MSE,PSNR and IEF than SMF and New Decision-Based Algorithm(NDBA).更多还原