High-payload block-based data hiding scheme using hybrid edge detector with minimal distortion

Data hiding is a technique that is embedding the secret message into the media. In 2010, Chen et al.´s proposed a scheme combined the `Canny´ edge detector and fuzzy edge detector to increase edge pixels, and embedded more secret data into the edge pixels than the non-edge pixels based on the least-significant-bit (LSB) substitution scheme. In this study, the authors use Kaur et al.´s fuzzy logic-based algorithm and extend the original design to block-based design. The experimental results show that the proposed method achieves higher payload with Kaur et al.´s fuzzy logic-based algorithm, and achieve minimal distortion by selecting the number of edge pixel´s embedding length of each block which has minimum mean-squared error.