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Encryption and Data Insertion Technique using Region Division and Histogram Manipulation

机译：使用区域划分和直方图处理的加密和数据插入技术

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摘要

A separable encryption and data insertion method is proposed in this paper. The input image is divided into 2 parts, where the first part is manipulated to mask the perceptual semantics, while the second part is processed to hide data. The binary image, which is the data to be inserted, further divides the second part of the input image into 2 regions called the `zero' and `one' regions. Pixels of the original image at position coinciding with the `zero' region are darken, while those coinciding with the `one' region are brightened. The darkening and brightening processes are performed by using histogram matching technique. The proposed joint method is separable, where the inserted binary image can be extracted directly from the masked image or from the reconstructed image. The proposed method is also commutative because the same results is achieved irregardless of the order of processing in encrypting and inserting data. Experiments were carried out to verify the basic performances of the proposed method.
机译：提出了一种可分离的加密和数据插入方法。输入图像分为两部分，其中第一部分被操纵以掩盖感知语义，而第二部分被处理以隐藏数据。作为要插入的数据的二进制图像将输入图像的第二部分进一步分为2个区域，称为“零”和“一”区域。与“零”区域重合的原始图像像素变暗，而与“一”区域重合的像素变亮。通过使用直方图匹配技术执行变暗和变亮过程。所提出的联合方法是可分离的，其中插入的二进制图像可以直接从蒙版图像或重构图像中提取。所提出的方法也是可交换的，因为无论加密和插入数据的处理顺序如何，都可获得相同的结果。实验进行了验证该方法的基本性能。

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