It has been shown that complete complementary codes can be applied into somecommunication systems like approximately synchronized CDMA systems because ofits good correlation properties. CT-CDMA is one of the communication systemsbased on complete complementary codes. In this system, the information data ofthe multiple users can be transmitted by using the same set of complementarycodes through a single frequency band. In this paper, we propose to applyCT-CDMA systems into a kind of steganography. It is shown that a large amountof secret data can be embedded in the stego image by the proposed methodthrough some numerical experiments using color images.
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