The capacity and the distortion are the two important indexes in the information steganography field. The research tries adopting the famous Median Edge Detection to judge the flat area and the complex area, combining the concept of the Human Vision System to embed a fewer confidential information. A more confidential information should be embedded in the complex area for increasing the capacity. The research adopts the steganography method with the Least Significant Bit and the Optimal Pixel Adjustment Process method to embed the confidential information for reducing the distortion. The experimental results show that the research can obtain the efficiency of the high capacity and the low distortion.
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