Sentence examples for watermark component from inspiring English sources
where the ith watermark component is given as the sum of R entries of the LUT W k. The result of this operation is the watermarked content y k =x+w k identifying the kth user.
Because the high-frequency subbands of the watermarked image contain the watermarking components, the proposed scheme is highly robust against various low-frequency attacks, which will remove the low frequency component of the image.
Achieving these objectives requires determining and considering the necessary properties of the individual watermarking components.
These properties, in practice, can be interpreted in terms of the inputs and outputs of watermarking components, use of keys, etc.
As the data-hiding component, watermark embedding function considers where and how to embed the watermark satisfying various requirements of the cover objects (here, digital images).
The time domain-based solutions (such as LSB schemes [5] and echo hiding [6]) usually have a low computational cost but somewhat sensitive to additive noises, while the frequency domain watermarking methods provide a satisfactory resistance to audio processing operations by watermarking low-frequency component of the signal.
We therefore narrow down our scope to only the watermarking applications in digital images, and start constructing a basic model with considering the possible watermarking inputs, outputs, component functions used in the applications.
As expected, the time-frequency characteristics of the watermark follow those components of the speech signal.
They employed Haar DWT domain to embed the watermark in the components of the image that are of perceptual significance.
Specifically, the application of the DCT on blocks leads to 64 coefficients which are zigzag scanned (i.e., arranged in decreasing order) to obtain one dimensional vector representing the entire set of the DCT coefficients to be watermarked (the DC component for each block is not used).
Check 'Include watermark' in the 'Watermark' section.
