摘要
针对小波边缘检测阈值设定问题,提出了一种基于小波多尺度边缘检测的改进阈值设定方法,采用保护图像边缘信息的小波去噪方法来实现.实验证明,在加大阈值的情况下,此种方法仍保持了清晰的图像边缘,而且既避免了自适应阈值的操作不稳定性,又有效降低了图像的噪声.
As for how to choose a proper threshold in the edge detection, a method of improving threshold based on multi - scale wavelet edge detection is proposed in this paper. To protect the image edge, the noise of image is eliminated using this method. Experiment results show that distinct edges can still be obtained when threshold is increased, and not only the instability of adaptive threshold can be avoided, but the noise can also be reduced effectively.
出处
《哈尔滨理工大学学报》
CAS
2007年第3期4-6,共3页
Journal of Harbin University of Science and Technology
