Robust and blind watermarking scheme for three dimensional anaglyph images

• A new robust, blind and fast watermarking scheme for 3-D anaglyph images.
• Since the computational cost of RGB processing is high, 3-D DWT is used to process the image directly.
• Image-dependent watermark generation.
• Achieves good imperceptibility with PSNR values greater than 51 dB.
• Improved robustness to various image processing and signal processing attacks.

In this paper, a robust and blind watermarking scheme for three dimensional (3-D) anaglyph images is proposed. Since the computational cost of Red–Green–Blue (RGB) processing is quite high, we have used 3-D Discrete Wavelet Transform (3-D DWT) to decompose the image and process it directly. The watermark to be embedded is computed from the image and also the process involves watermark strength factor which scales the quality of the watermark. Jacket matrix is used due to its simplicity in the watermark embedding and extraction processes. Experimental results show that the proposed scheme is highly imperceptible and robust against various image processing and signal processing attacks. Comparisons with the state-of-the-art demonstrate the effectiveness of our scheme.

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