An Information Hiding Algorithm for Two-dimensional Engineering Graphics Using HVS and Dimension Characters
一种利用HVS与标注特征的2维工程图信息隐藏算法

Focusing on the problem of copy right protection for two-dimensional engineering graphic, an information hiding algorithm based on HVS and dimension characters is proposed. The sequenced dimension entity set is firstly acquired from the engineering graphic. Then the message is encrypted by a two-value chaotic sequence generated by Logistic map. The color and line weight character of a certain dimension entity is selected. And a slight modification is made to them based on HVS and the encrypted message. Simulation results show that the proposed algorithm is robust against the attacks such as rotation, moving, equal scaling, unequal scaling and noise.