A Perceptive Approach to Digital Image Watermarking Using a Brightness Model and the Hermite Transform

<div>(a) Correlation values and threshold obtained after scaling the watermarked Lena image. (b) Correlation values and threshold obtained after rotating the watermarked Lena image.</div>

Mathematical Problems in Engineering

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Figure 14

Figure 14: A Perceptive Approach to Digital Image Watermarking Using a Brightness Model and the Hermite Transform 