Blind watermarking using QIM and the quantized SVD domain based on the q-logarithm function

We propose new image blind watermarking by using both the quantization index modulation (QIM) technique and the quantized singular value decomposition (SVD) domain based on the q-logarithm function. In order to reduce the distortion of the embedded image, we employ the q-logarithm transform on the Y component of the original image after performing the SVD domain. We call this domain the q-SVD domain. In our proposed method, the tradeoff of robustness and quality can be controlled by a predefined quantization coefficient Q of QIM and a parameter q of the q-SVD domain. Several experiments are conducted to show the robustness of our proposed method against processing attacks and geometric attacks.