14-09-2017, 12:50 PM
This scheme inserts messages into a still image based on wet paper codes oriented to Hamming codes (7,4). It incorporates a segment of three secret bits in a group of seven pixels of cover at a time. The experimental results show that the proposed scheme achieves a high inclusion efficiency and acceptable capacity.
The main goal of steganography is to construct a statistically undetectable communication channel. Steganography employs an innocent-looking medium called the host object, or object of coverage, to carry secret data to a desired recipient. In order to embed a secret message, the sender slightly modifies the cover image to get the stego image. In steganography under the passive guardian scenario, the goal is to communicate as many bits as possible without introducing any detectable artifacts into the stego object.
The main goal of steganography is to construct a statistically undetectable communication channel. Steganography employs an innocent-looking medium called the host object, or object of coverage, to carry secret data to a desired recipient. In order to embed a secret message, the sender slightly modifies the cover image to get the stego image. In steganography under the passive guardian scenario, the goal is to communicate as many bits as possible without introducing any detectable artifacts into the stego object.