基于位交换的图像置乱,作者：QQ 64134703 ，电子毕业设计，欢迎咨询 -Exchange based on digital image scrambling, of: QQ 64134703, e-graduate design, please consult

数据库是由10个人的7种正面表情组成的213幅灰度图像，图像是以大小为256256的8位灰度级存储的，格式为.tiff型，平均每个人每种表情有2到4张。- the JAFFE database[11] which is composed of 213 images of female facial expression corresponding to 10 distinct subjects. Each image is stored at a resolu