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yi zhong ji yu cu ji de cai se tu xiang bian jie zao sheng die dai lv chu fang fa
Author(s): 
Pages: 424-430
Year: Issue:  4
Journal: Acta Scientiarum Naturalium Universitatis Neimongol

Keyword:  Rough setboundary noiseDDFiterative filteringcolor image;
Abstract: 边界噪声的处理在图像去噪中占有重要位置,该文提出了一种图像边界噪声处理方法.该方法将边界噪声和内部噪声分开处理,降低了二者在处理过程中的相互影响.文中将粗集和矢量DDF(Directional Distance Filter)滤波相结合,首先对图像中除边界以外的内部噪声,以迭代的形式进行滤除.由于在内部像素滤除之前已对边界像素进行了检测,因此边界噪声不会作为内部滤波器的输入像素,有效地避免了边界噪声的传播.待内部噪声完全滤除后,再取特定的窗口对边界噪声进行滤除.因为粗集与矢量DDF滤波的结合在噪声滤除率、颜色保持、细节保护各方面都有优势,使得内部噪声像素去除效果比较好,不会影响到边界噪声的去除.仿真实验表明该方法能有效滤除边界噪声.
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