Oblivious Image-Adaptive Watermarking Using Quantization Index Modulation
نویسندگان
چکیده
This paper proposes a new oblivious imageadaptive watermarking technique which utilizes a visual model in the discrete cosine transform (DCT) domain and is based on quantization index modulation. In this scheme, the image is watermarked by modifying selected DCT coefficients of image blocks under a constraint specified by the visual model. The binary watermark is recovered from the watermarked image without any knowledge of the original image. The robustness of the algorithm to various attacks is evaluated and presented.
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تاریخ انتشار 2001