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.

• 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。