image key图像密钥imagen.印象；形象；影像；图像；肖像vt.反映；想像；描绘image recognizing图象识别image persistence图象持久性image transaction图像交换image calculation图像解算image workstation图像工作站image permutation图像置乱image reeognition图像目标识别image collocation意象并置images per minute图像数每分钟image- reversal反转

1. Traditional algorithms of image edge detection were analyzed.
   摘要分析了传统图像边缘检测算法。
2. Propose a method to apply binaryzation by combining with specifications of image edges.
   提出了一种结合图像边缘特征来进行二值化的方法。