分解图像像素值为二进制，对图像进行二进制为基础的DNA编码-Decomposition of the image pixel value is binary, binary image based on the DNA coding

混沌系统加密解密 结合DNA编码的加减法操作-Chaotic system with DNA encoding the encryption and decryption operations of addition and subtraction

一种对角牛顿法来求解非负稀疏编码问题，在原有的NNSC的算法上的进一步改进-Kind of angle Newton' s method to solve the problem of non-negative sparse coding, further improvements in the original NNSC algorithm