Secure high capacity tetris‐based scheme for data hiding

Abstract

Information hiding is a technique that conceals private information in a trustable carrier, making it imperceptible to unauthorised people. This technique has been used extensively for secure transmissions of multimedia, such as videos, animations, and images. This study proposes a novel Tetris‐based data hiding scheme to flexibly hide more secret messages while ensuring message security. First, an LQ × LQ square lattice Q is selected to determine the maximum embedding capacity, and then it is filled without gaps through rotating and sliding tetrominoes while making the shape of each tetromino different. Secondly, according to the decided Q, the reference matrix and corresponding look‐up table are constructed and then used for secret messages embedding and extraction. In the authors approach, each pixel pair of the original image can be processed to conceal 4‐ or 6‐bit secret messages. The experimental results show that their proposed Tetris‐based scheme has excellent performance, exceeding the performance of some state‐of‐the‐art schemes in both embedding capacity and visual quality. The proposed scheme also provides secure covert communication.

How fast can we play Tetris greedily with rectangular pieces?

“…A surprisingly active field has been the ability of a Tetris player to hide messages via gameplay [70,71,86,87].…”

How Fast Can We Play Tetris Greedily With Rectangular Pieces?

“…Following the immense success of cannabis legalization, Tetris has followed suit with Enhanced Tetris Legalization [38,37,39,37,105] A surprisingly active field has been the ability of a Tetris player to hide messages via gameplay. [106,107,137,138].…”

Privacy-Preserving Reversible Data Hiding for Medical Images Employing Local Rotation

“…Usually, the cryptography-based information security technique [1,2] is considered to be an effective solution for this concern, but the encrypted information can easily attract the attention of attackers. us, the researchers in this area have focused their attention on irreversible data hiding [3][4][5] and reversible data hiding (RDH) [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25] in medical images, which are techniques that can provide security and avoid attracting the attention of attackers.…”