摘要
提出噪声图象边缘信息提取的一种实用方法。该方法以锐化处理结果为基础，二次滤波完成图象预处理。研究表明，单纯对噪声图象进行锐化处理，只可增加视觉感观效果，不会使边缘提取效果增强；必须对锐化结果再次进行滤波处理后，才可获得满意的边缘信息。
A method for detecting edges in noisy images is put forward in this paper. The method, based on the result of image sharpening, conducts filtering two times. The results show that pure sharpening can only enhance visual effects, but can not make good edge detection. To obtain better edge information, the noise in the sharpened i mage should be filtered.
