Hiding the Text Into an Image by Max-Plus Algebra

Abstract

Security of an information system becomes very important especially for the information that is transfer through the internet. One of the effort to protect data is by encoding or hiding the data. One of popular technique for hiding text data into images is the LSB method. The weakness of the previous method is that the maximum number of characters that can be hidden must be less than the total number of pixels of the cover image. This article will discuss about how to hide text or character into an images using max-plus algebra. By this method, the number of characters that can be hidden in the image as much as the number of pixels, so this method can hide more characters in the image compared to previous method.