A New Spatial q-log Domain for Image Watermarking
نویسندگان
چکیده
In this paper, we propose a novel watermarking based on the spatial q-log domain. After decomposing the RGB information of the cover image, we apply the q-log transform to obtain the q-log domain frequency. We embed the watermark into the low-frequency of q-SVD domain in order to achieve the robustness of watermark. We choose in our method the Quantization Index Modulation (QIM) based watermarking scheme due to its good robustness and blind. In our proposed method, the tradeoff of robustness and quality can be controlled by a predefined quantization coefficient Q of QIM and q parameters of logarithm transform.
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