各种图像处理程序，图像加解密，图像增析，人脸识别等各种程序-Various picture handles procedure, the picture adds to decrypt, the picture increases Xi, and person s face identifies to wait various procedure

数字信号加密方法研究（音频），在matlab环境下对音频信号进行加密，并解密比较信号损失程度及适用范围。-Digital Signal Research (audio) encryption method, in the matlab environment on the audio signal is encrypted and decrypted compare the extent and scope of signal loss.