期刊名称：The USV Annals of Economics and Public Administration
印刷版ISSN：2344-3847
出版年度：2012
卷号：11
期号：2
页码：258-264
语种：English
出版社：Editura Universitatii Ştefan cel Mare din Suceava
摘要：This article presents the advantages of edge detection methods using filtering operations followed by application of differential operators fingerprint an image. When using methods based on differential operators when applying intensity variations can be detected by differentiation, but if noisy signals differentiation is dangerous due to the effect of amplifying the high frequencies. To eliminate this disadvantage must be designed optimal edge detectors (Canny) which satisfy the following criteria: accurate detection, correct location and a single response to a single edge.
