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首页> 外文期刊>International journal of digital crime and forensics >Print-Scan Resilient Binary Map Watermarking Based on DCT and Scrambling
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Print-Scan Resilient Binary Map Watermarking Based on DCT and Scrambling

机译：基于DCT和加扰的打印扫描弹性二进制地图水印

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摘要

This article describes how combing the characteristics of simple textures and uneven black area distribution of a binary map, a novel blind print-scan resilient watermarking scheme is proposed. First, the flipping probability of each pixel is calculated, and then the image characteristic value matrix is obtained by scrambling and partitioning. Second, a DCT transform is performed on the characteristic value matrix and then the DCT coefficients are modified according to the hidden data. After that, an inverse DCT is made to the modified DCT coefficient matrix, and the pixels of the corresponding block are flipped. Finally, the watermarked map is obtained by inverse scrambling. Experimental results and analysis show that the proposed scheme not only provides a large capacity and good imperceptibility, but also can resist the impact of a print-scan operation, and has strong robustness. Meanwhile, compared with the existing algorithms, it has a low implementation complexity and can be applied to military maps, engineering design drawings and other binary images.
机译：本文介绍了如何结合二元图的简单纹理和黑色区域分布不均匀的特点，提出一种新颖的盲打印扫描弹性水印方案。首先，计算每个像素的翻转概率，然后通过加扰和划分获得图像特征值矩阵。其次，对特征值矩阵进行DCT变换，然后根据隐藏数据修改DCT系数。此后，对修改后的DCT系数矩阵进行逆DCT，并翻转对应块的像素。最后，通过逆加扰获得带水印的地图。实验结果与分析表明，该方案不仅容量大，不易察觉，而且可以抵抗打印扫描操作的影响，具有较强的鲁棒性。同时，与现有算法相比，实现复杂度低，可以应用于军事地图，工程设计图等二进制图像。

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