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A DCT Domain Multipurpose Watermarking Technique for Images

机译:用于图像的DCT域多用途水印技术

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摘要

To notify and protect the copyright simultaneously, a visible watermark and an invisible watermark are embedded in different parts of the DCT coefficients of the host image. During the embedding process, the sensitivity of each block to distortion is taken into account based on human visual system (HVS) to preserve the quality of the watermarked image. Experimental results demonstrate that the visible watermark is hard to remove and the invisible watermark is robust to normal signal processing operations.
机译:为了同时通知和保护版权,在主机图像的DCT系数的不同部分中嵌入了可见水印和不可见水印。在嵌入过程中,基于人类视觉系统(HVS)考虑了每个块对变形的敏感性,以保持水印图像的质量。实验结果表明,可见水印难以去除,并且不可见水印对正常的信号处理操作具有鲁棒性。

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