CROSS-FREQUENCY DOMAIN FOR JPEG INVERSIBLE WATERMARKING USING MULTIPLE QUANTIZATION TABLES

Tóm tắt

Reversible data hiding techniques for JPEG images have big challenges in order to improve the capacity, quality, and flexible embedding method. In this article, we propose a new cross­domain using combination of multiple quantization tables in JPEG algorithm. We survey the efficiency of quantization coefficients on the DCT tables in order to decide the way to embed the watermark information. Compared to the conventional method, our experimental results show that our proposed method has better performance in term of both the increasing capacity and improving the quality of embedded JPEG images after data embedding.