二次滤波法在织物疵点边缘检测上的应用

针对织物图像斑点噪声的特点，采用了一种新的图像边缘检测方法。该方法以锐化处理为基础，经二次滤波完成图穰预处理，克服了以往一次滤波方法的缺点，在抑制噪声的同时，增强了图像的边缘信息。通过对织物疵点的检测表明，该方法可以取得较好的边缘检测结果，是一种实用有效的方法。

Application of secondary filtering in fabric defects edge detection

There is a kind of noise called speckle in fabric images, so a new kind of edges detection method is adopted. The method, based on the result of image sharpening, conducts filtering two times. It overcomes the disadvantages of the method of conducting filtering one time. While suppressing the noise, strengthen the image edge information. The fabric defects detection proves that the method is workable to make the ideal effect. It is a practical and effective edge detection method.