基于方向小波变换的边缘检测

Edge detection based on directional wavelet transform

定义了一种方向小波变换,并将其用于图像边缘检测.建立了它与Canny边缘检测子的关系.基于此提出的新的边缘检测方法,不仅可以有效地检测出图像的边缘,而且也可检测图像中某一方向的边缘.实验结果表明,新的边缘检测算法具有能检测方向性边缘、算法简单、计算量小、效果佳等优点.

In order to describe the directional features in image, constructed a new type of directional wavelet transform and propose a new algorithm for edge detection.The relationship and difference between the new approach and Canny detector are shown.The proposed algorithm is insensitive to noise,computability and efficiency.Some experiments are given and have shown the algorithm is of good orientation.