Voorbeelden van watermark

• In a series of individual challenges, the participants were given a sample audio piece, with one of the watermarks embedded.

• Watermarks were originally used by governments for documents, currency and other applications to help prevent counterfeiting.

• In fact, some of those books contained both the identical cross on mounts and identical bull's head watermarks.

• He has worked on problems to do with stereo and motion correspondence and multimedia issues of image database retrieval and watermarking.

• Since watermarks must be inserted into the video, they only identify copies of the particular video made after that point in time.

• Detecting watermarks in a video can indicate the source of an unauthorized copy.

• About a year later in 1905, these were replaced by stamps with an overprint in seriffed capitals, and these exist with two different watermarks.

• There are no watermarks or limitations, regardless of creation method.

• The series was added to over the years, and there are a great number of variants of papers, sizes, colors, watermarks, and plate flaws.

• The euro notes contain many complex security features such as watermarks, invisible ink, holograms and microprinting that document their authenticity.

• The fifty euro note contains several complex security features such as watermarks, invisible ink, holograms and microprinting that document its authenticity.

• The ten euro note contains several complex security features such as watermarks, invisible ink, holograms and microprinting that document its authenticity.

• A number of completed works can be shown (e.g., by inspecting watermarks or inks) to be completions of fragments that had long been left incomplete.

• One specialty use of carbon tetrachloride was in stamp collecting, to reveal watermarks on postage stamps without damaging them.

• Quantization watermarks suffer from low robustness, but have a high information capacity due to rejection of host interference.