On the difference between single- and double-sided bandpass filtering of spatial frequencies
详细信息 查看全文
- 作者：Xin Yanga ; b ; Wei Jiac ; jw81@163.com" class="auth_mail" title="E-mail the corresponding author ; Di Wua ; b ; Ting-Chung Poond
- 关键词：Spatial filtering ; Analog optical image processing ; Image enhancement
- 刊名：Optics Communications
- 出版年：2017
- 出版时间：1 February 2017
- 年：2017
- 卷：384
- 期：Complete
- 页码：71-77
- 全文大小：715 K
文摘
- •
Bandpass filtering will lead to edge extraction in image processing.
- •
In this paper, we explored single-sided and double-sided bandpass filtering.
- •
Single-sided filtering can approximate the operation of a first-order derivative.
- •
Double-sided filtering gives a second-order derivative.
- •
Simulations and optical experiments confirm our findings.