中文摘要：

改进传统的边缘检测方法,有很大的发展潜力.结合形态学方法,对Prewitt图像边缘检测方法进行改进,经过实例验证,改进方法检测的边缘更清晰、线条更完整,抗噪声性能良好.

英文摘要：

There is great potential for developing traditional edge detection methods.Single edge detection method can only reflect one side edge information of the image,an image edge detection method based on improved Prewitt method is presented to combine benefits of different methods.By comparison verification,the image edge detected is clear,lines in it are more complete,less noise and better antinoise performance than others.