digital watermark
noun[C]
ukusIT
apieceofelectronicinformationthat is put into acomputerfileand that cannot beremoved,showingwhocreatedorownsthefile:
Inordertoviewadigitalwatermark, you need aspecialprogramthat canextractthewatermarkdata.
Examplesofdigital watermark
digital watermark
Adigitalwatermarkis called "semi-fragile" if it resists benign transformations, but fails detection after malignant transformations.
From
This example is from Wikipedia and may be reused under a CC BY-SA license.
Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.The needed properties of adigitalwatermarkdepend on the use case in which it is applied.
FromThis example is from Wikipedia and may be reused under a CC BY-SA license.
Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.Adigitalwatermarkis called "imperceptible" if the watermarked content is perceptually equivalent to the original, unwatermarked content.
FromThis example is from Wikipedia and may be reused under a CC BY-SA license.
Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.Adigitalwatermarkis called "robust" if it resists a designated class of transformations.
FromThis example is from Wikipedia and may be reused under a CC BY-SA license.
Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.The music still carries adigitalwatermarkto identify the purchaser.
FromThis example is from Wikipedia and may be reused under a CC BY-SA license.
Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.For marking media files with copyright information, adigitalwatermarkhas to be rather robust against modifications that can be applied to the carrier signal.
FromThis example is from Wikipedia and may be reused under a CC BY-SA license.
Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.If adigitalwatermarkdistorts the carrier signal in a way that it becomes perceivable, it is of no use.
FromThis example is from Wikipedia and may be reused under a CC BY-SA license.
Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.In some scenarios, adigitalwatermarkis added to a piece of media such as an image, film, or audio clip, to prove its authenticity.
FromThis example is from Wikipedia and may be reused under a CC BY-SA license.
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.
FromThis example is from Wikipedia and may be reused under a CC BY-SA license.
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.
FromThis example is from Wikipedia and may be reused under a CC BY-SA license.
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.
- guarded secret
- guardhouse
- guardian
- guardian ad litem
- guardian angel
- guardian-angel
- guardianship
- guardian spirit
- guarding
- guard of honor
- guard-of-honor
- guard of honour
- guard-of-honour
- guard post
- guard-post
- guard rail
- guard-rail
- guardroom
- Guards
- guard ship
- guard-ship
- guardsman
- guard station
- guard station
- guard's van