摘要
小波变换是一种有效检测图像边缘的方法,但由于变换中维数倍增,造成计算量十分大。介绍用传统的4f光学处理系统实现小波变换,它在光学图像的边缘特征提取中能够很好地得到应用,最后给出计算机仿真结果。
Wavelet transform is a feasible method of the edge detection of images. But it has a shortcoming that the dimensions increase double when it is transformed, so the calculation quantity is greatly increased. A wavelet transform in a traditional 4f optical processor is presented in this paper, which can be applied to the edge detection of optical images. In the end, the computer simulation results are given.
出处
《佛山科学技术学院学报(自然科学版)》
CAS
2004年第1期12-15,40,共5页
Journal of Foshan University(Natural Science Edition)
关键词
小波变换
傅里叶变换
边缘特征提取
wavelet transform
fourier transform
edge detection of image