【摘要】 为了解决Sobel算子在阈值选择不当的情况下易造成图像边缘丢失或产生伪边缘的问题,通过最大类间方差的方式选出合适的阈值;同时利用数学形态学细化算法对该边缘图像进行细化处理。实验结果显示,该方法在保持原有边缘图像特征信息的前提下,比传统Sobel算子得到了更好的结果。更多还原

【Abstract】 Given the improper threshold,Sobel operator could easily lead to the loss of image edges or produce broad pseudo-edges.To solve these problems,appropriate threshold was selected by using the constraint of variance firstly,and then mathematical morphology thinning algorithm was utilized to thin the edge images detected by Sobel operator.The experimental results show that this method can bring about satisfactory thinning effects while retaining the original edge information.更多还原