%0 Journal Article %A LI Dan %A QIAN Jian-sheng %A LU Nan-nan %A ZHOU Jun-min %A TIAN Wen-ke %T Improving of image edge detection technique %D 2010 %R 10.3778/j.issn.1002-8331.2010.18.051 %J Computer Engineering and Applications %P 164-166 %V 46 %N 18 %X Compared with some traditional edge detection technique such as Roberts operator,Sobel operator,Gauss-Laplace operator,Canny operator,etc.This paper indicates the traditional algorithms that have drawbacks in the detection accuracy and the antinoise performance.After analyzing the limitation of the above operators,a new method is put forward.On researching for best boundary through iteration arithmetic,it enhances contrast of object and background,object edge,and abstracted object area exactly.It reduces influence of noise to gray threshold in combined with morphology.The results of the experiment pictures indicate that the improved algorithm has the better accuracy,noise against quality,and precision in the edge detection. %U http://cea.ceaj.org/EN/10.3778/j.issn.1002-8331.2010.18.051