A Novel Approach to Image Steganography Based on the Image Colorization
A Novel Approach to Image Steganography Based on the Image Colorization
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DOI：
10.1109/vcip47243.2019.8965732
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发表时间：
2019-12
期刊：
影响因子：
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通讯作者：
Kazunori Uruma;K. Konishi;Tomohiro Takahashi;T. Furukawa
中科院分区：
文献类型：
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作者：
Kazunori Uruma;K. Konishi;Tomohiro Takahashi;T. Furukawa
本文提出了一种新颖的彩色图像图像隐写算法。最近，已经研究了基于彩色化的图像编码技术。为了有效地压缩彩色图像，该技术通过彩色化矩阵将色度图像变换为低维子空间中的向量。本文利用基于彩色化的图像编码进行隐写算法，其中秘密数据被嵌入到彩色化矩阵的零空间中。由于零空间的维数足够高，可以嵌入大容量的数据。算例表明，该算法能有效地将灰度图像等大容量秘密数据嵌入到彩色图像中。
This paper proposes a novel image steganography algorithm for color image. Recently, colorization-based image coding technique has been studied. In order to compress the color image effectively, this technique transform the chrominance image to a vector in a low-dimensional subspace via the colorization matrix. This paper utilizes the colorization-based image coding for steganography algorithm, where the secret data is embedded into the null space of the colorization matrix. Because the null space is high dimension enough, a large capacity data can be embedded. Numerical examples show that the proposed algorithm embeds large capacity secret data such as grayscale image into color image effectively.