Invisible Digital Watermarking in the Spatial and Dct Domains for Color Images
نویسنده
چکیده
This paper presents two digital watermarking schemes for embedding a grayscale watermark into color images. The first embeds the watermark directly into the spatial domain while the other embeds the watermark after converting to the DCT Domain. In both schemes, following the pixel modification, the watermark is redirected into the saturation component of the image. The original image is needed in the extraction process. The result of both schemes produces a watermarked image that is no different visibly from the original image. Index Terms – Digital watermark, discrete cosine transform, pseudorandom permutation, spatial domain.
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تاریخ انتشار 2007