基于判断脉冲噪声的中值滤波改进算法研究

Research on Improving the Algorithm of the Median Filter Based on the Judgement of the Impulse Noise

为提高图像去噪效果,在分析了中值滤波算法及判断脉冲噪声中值滤波算法基础上,对算法进行了门限选择及噪声误判的改进,改进后的算法增强了单线元素边缘的检测能力。通过仿真结果,可以看出对图像的去噪效果有一定的提高,信噪比也有所提高。

To improve image denoising effect, the algorithm based on the analysis of the median filter, algorithm on the choice of the threshold and noise misjudgement is improved further. The improved algorithm enhance the edge of the single element detection capability. The simulated results show that the effect of image denoising is improved to a certain extent. The SNR is also improved.