目前，基于多媒体图像的信息安全研究主要集中在数字水印与图像信息隐藏两方面。

At present, there are mainly two branches of information security research based on digital pictures, which are watermarking and steganography.

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本文着力于研究信息隐藏及数字水印的容量问题，并将容量与数字水印算法结合起来。

This paper focuses on the capacity of information hiding and digital watermarking. There are three contributions in this thesis as follows:1.

youdao

本文着力于研究信息隐藏及数字水印的容量问题，并将容量与数字水印算法结合起来。

This paper focuses on the capacity of information hiding and digital watermarking. There are three contributions in this thesis as follows:1.

youdao