期刊名称：International Journal of Computer Technology and Applications
电子版ISSN：2229-6093
出版年度：2012
卷号：3
期号：1
页码：251-254
出版社：Technopark Publications
摘要：On the basis of signal to noise ratio, canny operator generates best result for edge detection amongst sobel, robert and prewitt operator. In this paper we are presenting an analytical approach and comparison of efficiency of functioning of various gradient operators using different gray-scale images
