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Application of Improved Median Filter on Image Processing

机译:改进中音滤波器在图像处理中的应用

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—Median filter is the most common method of clearing image noise. This paper proposes improved algorithm of median filter to remove sale and pepper noise of image. According to the characteristics of salt and pepper noise, the algorithm detects image noise, and establishes noise marked matrix, without processing the pixels marked as signal. The signal of the pixel is marked as not treated, labeled according to their pixel noise pollution in the neighborhood to take a different pixel weighted mean filter window size, weight pixel region by the noise points to determine the local histogram. Matlab experiments show that improved median filter can greatly reduce the time of clears image noise and it performs better than median filters on noise reduction while retaining edges of an image.
机译:-Median滤波器是清除图像噪声的最常见方法。本文提出了改进的中位滤波器算法,以删除图像的销售和辣椒噪声。根据盐和辣椒噪声的特征,算法检测图像噪声,并建立噪声标记矩阵,而无需处理标记为信号的像素。像素的信号标记为不处理,根据其像素噪声污染标记为邻域中的像素噪声污染,以取出不同的像素加权平均滤波器窗口大小,通过噪声点来确定域的权重像素区域以确定本地直方图。 MATLAB实验表明,改进的中值滤波器可以大大减少清除图像噪声的时间,并且它比在噪声减少时更好地表现出噪声减少的时间,同时保持图像的边缘。

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