Steganography Genetic Algorithm Hyperparameter Tuning through Response Surface Methodology
Warley Gramacho da Silva, Rafael Lima de Carvalho, Glêndara Aparecida de Souza Martins · Academic Journal on Computing Engineering and Applied Mathematics · 2020
Steganography consists of hidding bits of an information source into a host source. In image processing, a common way of doing the hiding process is to break each byte from the message information and embbed into the message bytes in a way that the differences among the original host and the embedded one is minimized. A genetic algorithm can be used to find the proper combination of bits in order to minimize such differences, but some hyperparameters need to be optimized in order to get an optimized performance. This work investigates the application of Response Surface Methodology in order to find the best hyperparameters of a genetic algorithm applied to image steganography.