Reversible Texture Synthesis for Steganography: Hidden Data with High Fidelity 🎨

A texture synthesis process
resamples a smaller texture image, which synthesizes a new
texture image with a similar local appearance and an arbitrary
size. We weave the texture synthesis process into steganography
to conceal secret messages. In contrast to using an existing cover
image to hide messages, our algorithm conceals the source texture
image and embeds secret messages through the process of texture
synthesis. This allows us to extract the secret messages and
source texture from a stego synthetic texture. Our approach
offers three distinct advantages. First, our scheme offers the
embedding capacity that is proportional to the size of the stego
texture image. Second, a steganalytic algorithm is not likely
to defeat our steganographic approach. Third, the reversible
capability inherited from our scheme provides functionality,
which allows recovery of the source texture. Experimental results
have verified that our proposed algorithm can provide various
numbers of embedding capacities, produce a visually plausible
texture images, and recover the source texture.