Hiding data in images by simple LSB substitution

✍ Scribed by Chi-Kwong Chan; L.M. Cheng

• Publisher: Elsevier Science
• Year: 2004
• Tongue: English
• Weight: 248 KB
• Volume: 37
• Category: Article
• ISSN: 0031-3203
• DOI: 10.1016/j.patcog.2003.08.007

✦ Synopsis

In this paper, a data hiding scheme by simple LSB substitution is proposed. By applying an optimal pixel adjustment process to the stego-image obtained by the simple LSB substitution method, the image quality of the stego-image can be greatly improved with low extra computational complexity. The worst case mean-square-error between the stego-image and the cover-image is derived. Experimental results show that the stego-image is visually indistinguishable from the original cover-image. The obtained results also show a signiÿcant improvement with respect to a previous work.