Sentence examples for a certain watermark from inspiring English sources

Given a certain, watermark information bit steam begins to be embedded from the th bit plane.

For certain watermarking schemes, we have to consider the trade-off between imperceptibility and robustness.

After this, certain watermarking schemes based on curvelet domain have been proposed[12, 13].

Since there are certain watermarking schemes different from spread spectrum-based methods such as content-based or quantization index modulation (QIM) watermarking algorithms, it is desirable to make a comparison with these kinds for us to draw a fair conclusion.

From another perspective, what kind of image should be chosen as the carrier to hide a certain amount of watermarking is also the concern of the watermarking researchers.

In the experiment, the watermarked images first undergo a certain attack and then the watermark detection is performed on the nonwatermarked images and the attacked images.

Given an image which has a certain size, if the watermarking algorithm is fixed, the maximum payload is also fixed.

This is in accordance with the block design of Reed-Solomon codes which help protect the watermark to a certain limit.

However, once the suppression of the watermark exceeds a certain level (K>512), the image becomes no longer usable because of the high perceptible distortions.

This requires the use of digital watermarking has a certain ability to resist noise.

Additionally, watermarks having a certain symmetry (usually circular, as in [11, 12]) are employed to cope with geometrical attacks.