Abstract
This paper is to create a pragmatic steganographic
implementation to hide black and white image which is known
as stego image inside another gray bitmap image that known as
cover image. First of all, the proposed technique uses k-Modulus
Method (K-MM) to convert all pixels within the cover image
into multiples of positive integer named k. Since the black and
white images can be represented using binary representation, i.e.
0 or 1. Then, in this article, the suitable value for the positive
integer k is two. Therefore, each pixel inside the cover image is
divisible by two and this produces a reminder which is either
0 or 1. Subsequently, the black and white representation of the
stego image could be hidden inside the cover image. The ocular
differences between the cover image before and after adding the
stego image are insignificant. The experimental results show that
the PSNR values for the cover image are very high with very
small Mean Square Error.
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