图像处理时，总要有标准图片库，其中lena是公认的用于图形处理算法测试图片，然而网上的lena多数已经过预处理，本文件是lena的全身照原图，未经过任何预处理，可用于研究。-Image processing, there must be standard image library, which lena is a recognized test image processing algorithms for graphics, but most of the Internet has been pre-lena, lena the body of this document is the original photo, not through any pretreatment, can be used for research.