In this paper, a steganography algorithm has been proposed which is based on quantization table modification and image scrambling in the DCT domain. First, the algorithm homogenizes the energy by scrambling the cover image to improve the number of DCT coefficients suitable for information embedding. Second, the embedding capacity of the DCT block is determined by the value of the quantization table in the algorithm, different quantization tables get different embedding effects. In addition, this paper proposes an optimized modified quantization table. Extensive experiments show that the proposed algorithm achieves a great potential for confidential data and indiscernible image quality.

中文翻译：

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DCT域中一种基于量化表修改和图像置乱的新型隐写算法

本文提出了一种基于DCT域中量化表修改和图像加扰的隐写算法。首先，该算法通过对覆盖图像进行加扰来均匀化能量，以提高适合信息嵌入的 DCT 系数的数量。其次，DCT块的嵌入能力由算法中量化表的值决定，不同的量化表得到不同的嵌入效果。此外，本文提出了一种优化的修正量化表。大量实验表明，所提出的算法在机密数据和难以辨认的图像质量方面具有巨大潜力。