| 词汇 | digital-watermark |
| 释义 | digital watermark noun[ C ] ukus IT a piece of electronic information that is put into a computer file and that cannot be removed, showing who created or owns the file: In order to view a digital watermark, you need a special program that can extract the watermark data. Examples of digital watermarkdigital watermark A digitalwatermark is called "semi-fragile" if it resists benign transformations, but fails detection after malignant transformations. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The needed properties of a digitalwatermark depend on the use case in which it is applied. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. A digitalwatermark is called "imperceptible" if the watermarked content is perceptually equivalent to the original, unwatermarked content. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. A digitalwatermark is called "robust" if it resists a designated class of transformations. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The music still carries a digitalwatermark to identify the purchaser. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. For marking media files with copyright information, a digitalwatermark has to be rather robust against modifications that can be applied to the carrier signal. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. If a digitalwatermark distorts the carrier signal in a way that it becomes perceivable, it is of no use. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In some scenarios, a digitalwatermark is added to a piece of media such as an image, film, or audio clip, to prove its authenticity. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Like traditional watermarks, digital watermarks are only perceptible under certain conditions, i.e. after using some algorithm, and imperceptible anytime else. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Digital watermarks may be used to verify the authenticity or integrity of the carrier signal or to show the identity of its owners. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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