一种基于尺寸特性的图像边缘检测算法

An edge detection algorithm based on the characterization of the size of image

在多尺度子波变换模极大值的基础上 ,根据图像有效边缘与噪声边缘在尺寸大小上的显著差异等特征 ,实现了一种按边缘尺寸大小及按边缘尺寸大小自适应分块检测图像边缘的方法。实验表明 ,采用这一方法 ,可得到单像素宽、定位精确、抗噪声效果好的边缘图像 ,其效果明显优于经典的边缘检测方法。

According to the distinct difference between an effective edge and a noise edge on size of image an algorithm of edge detection based on the multi- scale wavelet transform is realized.The result proves that algorithm can afford a wide single pixel,precise orient,cleanly anti- noise edge image,and better than the classical algorithm.