With the current level of technological advances

steganography can be easily steganalysed and information can be easily extracted illegally. Steganography based on modular function has other disadvantages. To overcome these disadvantages

this study presents the optimal parameterized binary modulo mapping steganographic algorithm. The information hiding parametric design is defined

and the security of the parametric information hiding algorithm is evaluated. The optimal parameterized binary modulo mapping steganographic algorithm is presented. The modulo operation result of the optimal combination of two pixel values is mapped to an -ary notational system by using the proposed algorithm. The proposed algorithm realizes that each secret digit in an -ary notational system is carried by two cover pixels. Compared with other similar algorithms

the proposed method has stronger resistance to steganalysis and information extraction

better visual quality of stego image

tighter security

and higher practicability.