Image steganography using generalized base single digit sum (GB-SDS)

Image steganography intends to hide an important message within an image for the purpose of secret communication or storage. Maintaining imperceptibility of the message is a major characteristic of a good image steganography scheme. This paper, at first, generalizes the concept of single digit sum to support a number system with any given base. Then, this generalized base single digit sum has been utilized to develop an image steganography scheme which elegantly draws a balance between large payload and imperceptibility of the message. Experimental results establish the superiority of this method as compared to several existing image steganography schemes.