題名: LSB-based High-Capacity Data Embedding Scheme for Digital Images 作者: Lin, C. C.;Chen, Y. H.;Chang, C. C.
關鍵詞: Data embedding;Hiding capacity;Stego-images;LSB replacement;LSB attack
日期: 2009-11
上傳時間: 2009-12-17T06:57:34Z 出版者: Asia University
摘要: In this paper, an improved LSB replacement scheme having a high payload is proposed. In this scheme, a secret stream is transformed into a secret sequence by using
a 3n-base notational system and the secret sequence is embedded into a pixel unit con-
taining n neighboring pixels. On average, log23 bits can be embedded into a cover pixel;
therefore, our proposed data embedding scheme outperforms the original LSB replacement
technique in hiding capacity. Experimental results present positive data that confirm that
our proposed scheme not only provides higher hiding capacity than LSB replacement at
the same image distortion levels, but also resists LSB attack and detection.
