Digital Watermarking and Steganography: Fundamentals and Techniques
Digital Watermarking and Steganography: Fundamentals and Techniques
Digital Watermarking and Steganography
Digital Watermarking and Steganography
Enhanced images watermarking based on amplitude modulation
Image and Vision Computing
A wavelet-based watermarking algorithm for ownership verification of digital images
IEEE Transactions on Image Processing
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In this paper, an adaptive original pixel prediction is proposed to enhance the watermark retrieval performance of the image watermarking method proposed in [8]. Accordingly, our proposed method adaptively removes one or more surrounding pixel(s) around the predicted pixel, depending on a given threshold, to improve the accuracy in the original pixel prediction process. The experimental results show the improved performance in term of the accuracy of the retrieved watermark, compared to the previous retrieval method proposed in [8]. We also evaluate the robustness of our watermarking approach against various attacks i.e. Gaussian noise, JPEG compression, image cropping and contrast enhancement.