Steganography in wavelet domain by use of visual complexity

摘要

Steganography deals with technology to embed secrete data into camouflage images. Niimi et.al proposed a method to embed data directly to image itself by use of complexity index. However, the method does not retrieve the secret data if the data-embedded image were compressed. This paper extends the Niimi's method to wavelet domain and clarify the characteristics of the method.