针对边缘检测中检测精度与抗噪能力的相互制约的问题,采用非线性提升格式,结合自适应阈值,提出了一种新的边缘检测算法.该算法计算简单、易于并行实现,且在一定程度上协调了检测精度与抗噪声之间的矛盾.实验结果表明该算法在提取边缘的同时能有效地抑制噪声,检测精度高.
Aim at the problem of the harmony between the precision of detection and the de-noising in the edge detection, this paper adopted nonlinear lifting scheme and chosen the adaptive thresholds, then presented a new method of edge detection for image. This new method computes simply and rapidly. Furthermore, it can differentiate the noise and the edge effectively. In the end the result proves that the new method can restrain noise in the edge detection and has an accurate localization.