A segmentation method based on the dyadic wavelet transform in 2-D is introduced in this paper.The first step is to find all the edge pixels of the FMI image using the 2-D wavelet transform.

• 本文给出的方法,考虑图像像元邻域的特征,应用二维小波变换求出目标与背景边缘的点集,按这个边缘点集的坐标点所对应的原图像像素灰度值的平均值作为分割阈值进行图像分割。