提出了一种新的基于多级加密和图像消色差分量的LSB幻方替换方法（M-LSB-SM）
A novel magic LSB substitution method (M-LSB-SM) using multi-level encryption and achromatic component of an image
摘要：
图像隐写术是信息安全领域的一个新兴研究领域，它通过在图像中嵌入秘密信息来隐藏其存在，同时获得尽可能小的统计可检测性。提出了一种新的RGB图像魔最低有效位替换方法（M-LSB-SM）。该方法基于色调-饱和度-强度（HSI）颜色模型的非彩色分量（I平面）和空间域的多级加密（MLE）。将输入图像转置并转换到HSI颜色空间。I平面被划分为四个相等大小的子图像，使用秘密密钥以不同角度旋转每个子图像。秘密信息被分成四个块，然后使用MLE算法（MLEA）对其进行加密。消息的每个子块基于使用魔术LSB替换的特定模式被嵌入到旋转子图像之一中。实验结果表明，与现有的几种主要方法相比，该方法不仅提高了隐写图像的视觉质量，而且具有良好的不可见性和多安全级别。
英文摘要：
Image Steganography is a thriving research area of information security where secret data is embedded in images to hide its existence while getting the minimum possible statistical detectability. This paper proposes a novel magic least significant bit substitution method (M-LSB-SM) for RGB images. The proposed method is based on the achromatic component (I-plane) of the hue-saturation-intensity (HSI) color model and multi-level encryption (MLE) in the spatial domain. The input image is transposed and converted into an HSI color space. The I-plane is divided into four sub-images of equal size, rotating each sub-image with a different angle using a secret key. The secret information is divided into four blocks, which are then encrypted using an MLE algorithm (MLEA). Each sub-block of the message is embedded into one of the rotated sub-images based on a specific pattern using magic LSB substitution. Experimental results validate that the proposed method not only enhances the visual quality of stego images but also provides good imperceptibility and multiple security levels as compared to several existing prominent methods.
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