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Watermark embedding method and component, watermark authentication method and component

A technology of watermark embedding and watermarking, which is applied in the field of image processing, can solve the problems that it is difficult to ensure the uniform distribution of watermark information, reduce the anti-tampering ability of image data, and the concealment of watermark information, and achieve the effect of improving anti-tampering ability and uniform distribution

Active Publication Date: 2022-02-18
SUZHOU METABRAIN INTELLIGENT TECH CO LTD
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Problems solved by technology

However, the existing watermarking methods rely heavily on pseudo-random numbers, which are difficult to ensure the uniform distribution of watermark information in quantum images, so they are easy to be seen by the naked eye or simple detection technology, which reduces the anti-tampering ability and Concealment of watermark information

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  • Watermark embedding method and component, watermark authentication method and component
  • Watermark embedding method and component, watermark authentication method and component
  • Watermark embedding method and component, watermark authentication method and component

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Embodiment Construction

[0072] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0073] At present, watermarking can be added to image data based on quantum information technology, so as to protect image data from being tampered with. However, the existing watermarking methods rely heavily on pseudo-random numbers, which are difficult to ensure the uniform distribution of watermark information in quantum images, so they are easy to be seen by the naked eye or simple detection technology, which reduces the anti-tampering ability and Concealment of watermark infor...

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Abstract

The application discloses a watermark embedding method and component, and a watermark authentication method and component. The watermark embedding method disclosed in the present application can load the spatial domain quantum information of the watermark into the frequency domain of the image quantum data, and perform quantum inverse Fourier transform on the quantum data loaded with the watermark spatial domain quantum information, so that the watermark spatial domain quantum information is printed The spatial domain of scattered image quantum data realizes the uniform distribution of watermark information in the quantum image, improves the anti-tampering ability of image data and the concealment of watermark information. Correspondingly, the watermark embedding component, watermark authentication method and component provided by the present application also have the above technical effects.

Description

technical field [0001] The present application relates to the technical field of image processing, in particular to a watermark embedding method and component, and a watermark authentication method and component. Background technique [0002] At present, watermarking can be added to image data based on quantum information technology, so as to protect image data from being tampered with. However, the existing watermarking methods rely heavily on pseudo-random numbers, which are difficult to ensure the uniform distribution of watermark information in quantum images, so they are easy to be seen by the naked eye or simple detection technology, which reduces the anti-tampering ability and Concealment of watermark information. [0003] Therefore, how to improve the anti-tampering capability of image data and the concealment of watermark information is a problem to be solved by those skilled in the art. Contents of the invention [0004] In view of this, the purpose of this app...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T1/00
CPCG06T1/0042G06T2201/0051G06T2201/0065
Inventor 李辰姜金哲徐哲张新赵雅倩
Owner SUZHOU METABRAIN INTELLIGENT TECH CO LTD
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