| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 454344 | Computer Standards & Interfaces | 2011 | 5 Pages |
All the various data hiding methods can be simply divided into two types: (1) the extracted important data are lossy, (2) the extracted important data are lossless. The proposed method belongs to the second type. In this paper, a module-based substitution method with lossless secret data compression function is used for concealing smoother area of secret image by modifying fewer pixels in the generated stego-image. Compared with the previous data hiding methods that extract lossless data, the generated stego-image by the proposed method is always with better quality, unless the hidden image is with very strong randomness.
Research Highlights► A lossless secret data compression function is designed for further hiding. ► Concealing smoother area of secret image will modify fewer pixels of cover image. ► Stego-image is better in quality, unless secret image is with strong randomness. ► Very-low computation complexity (O (image size)) processes in decoding.
