Improving data embedding capacity into Base45 encoded strings

Abstract

AbstractIn the context of data hiding reversible embedding of information into printable string encoded data may provide a solution to store extra bits for various applications. A previous work demonstrated how to leverage the unused configurations for Base45 and Base85 encodings to store data into files and QR‐codes. In this paper we show that adapting the encoding to the byte distribution statistics of various data and file types significantly improves the payload for Base45 encoded data like QR‐codes.