Sentence examples for watermark intensity from inspiring English sources

Step 7: Embed watermark matrix W bits into matrix S according to the following 'additive-embedding' formula: S w = S + α ∗ W (6). where S w is the watermarked S matrix, and α is the watermark intensity which should be chosen to tune the trade-off between robustness and imperceptibility.

Values ranging from 1 to 5 were used for the watermark intensity α.

A visual mask based on bilateral filtering is used for the embedding region selection while the watermark intensity in each wavelet decomposition subband is modulated according to a contrast sensitivity function.

α λ,θ in Equation 2 and β λ,θ in Equation 3 are the two weighting factors that contain the adjustable parameter value of P for host image and watermark intensity.

To figure out the ideal strategies in various situations by applying visible watermarking between encoder and attacker, an example is shown in Figure 2 where the amount of watermark embedding intensity increases, the quality of watermark logo also increases as well as the robustness against attacks.

Check 'Include watermark' in the 'Watermark' section.

To study the influence of embedding intensity on watermarking payload, some knowledge about the digital watermarking embedding method should be introduced first.

In order to achieve the objective of encoder player's evaluation, the payoff should get a balanced function value between the intensity of embedded watermark and the perceptual translucence for watermark.

How to determine the equilibrium of optimal security strategies between encoder and attacker and the optimal tradeoff between the intensity of embedded watermark and the perceptual translucence for visible watermark is still remained as one of the most challenging research topics in image watermarking.

How to solve the conflict problem and to determine the best tradeoff between the intensity of embedded watermark and the perceptual translucence for adaptive visible watermark under intentional attacks is becoming a subject of importance [5, 12, 18].

This is beneficial to recover the watermark bit and the original pixel intensity in the decoder.