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Robust and blind watermarking using Arnold 4D cat map in discrete wavelet
International Journal of Information Technology Pub Date : 2019-08-07 , DOI: 10.1007/s41870-019-00341-7
Chittaranjan Pradhan

Though watermarking got attention in the past decade, its robustness and security remain as a challenge to the researchers. Here, one new technique has been proposed to counter these problems using Arnold 4D cat map in discrete wavelet domain. The color watermark is decomposed into the RGB planes before the encryption process. Similarly, the cover image is decomposed to the RGB planes. Initially, the watermark planes are encrypted using Arnold 4D map followed by embedment in the wavelet coefficients of the respective cover image planes. The evaluation parameters, such as NPCR, PSNR and NC show a better performance of this proposed algorithm.

中文翻译:

在离散小波中使用Arnold 4D猫图进行鲁棒和盲目水印

尽管水印技术在过去十年中受到关注,但其鲁棒性和安全性仍然是研究人员面临的挑战。在这里,已经提出了一种在离散小波域中使用Arnold 4D猫图来解决这些问题的新技术。在加密过程之前,彩色水印将分解为RGB平面。类似地,封面图像被分解为RGB平面。最初,使用Arnold 4D映射对水印平面进行加密,然后将其嵌入各个封面图像平面的小波系数中。NPCR,PSNR和NC等评估参数显示了该算法的更好性能。
更新日期:2019-08-07
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