  Data hiding is the art of embedding data into digital media in a way such
that the existence of data remains concealed from everyone except the intended
recipient. In this paper, we discuss the various Least Significant Bit (LSB)
data hiding techniques. We first look at the classical LSB data hiding
technique and the method to embed secret data into cover media by bit
manipulation. We also take a look at the data hiding technique by bit plane
decomposition based on Fibonacci numbers. This method generates more bit planes
which allows users to embed more data into the cover image without causing
significant distortion. We also discuss the data hiding technique based on bit
plane decomposition by prime numbers and natural numbers. These methods are
based on mapping the sequence of image bit size to the decomposed bit number to
hide the intended information. Finally we present a comparative analysis of
these data hiding techniques.
