An Improvement Technique Based on Structural Similarity Thresholding for Digital Watermarking

Figure 3

Watermark detection performance for the proposed method. High bars that stand out in each figure represent Gaussian noise, low pass filtering (LPF), and JPEG compression, from left to right, respectively: (a) LSB watermarking, (b) DCT-based watermarking, (c) wavelet-based watermarking, and (d) CDMA-based watermarking.

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