Intelligent terminal image leakage tracking and copyright authentication method based on digital watermarking

Abstract

The invention discloses an intelligent terminal image leakage tracking and copyright authentication method based on a digital watermark. The method mainly comprises the steps of watermark embedding and watermark extraction. According to the present invention, the small-capacity watermark information with a locator is repeatedly embedded in a texture complex area in the image, so that the copyright authentication and leakage traceability of the image can be realized in a complex network environment, and the jPEG compression attack, cutting attack and noise attack can be effectively resisted; under the JPEG compression with the quantization factor being 70% or above, the 1 / 4 cutting attack or the noise attack with the signal-to-noise ratio being larger than 50, the watermark extraction accuracy reaches 80% or above; during embedding, the system synchronously embeds the digital watermark information, and no delay pause exists in sense organ.

Description

technical field [0001] The invention relates to the technical fields of information security and digital evidence collection, and in particular to a digital watermark-based intelligent terminal image leakage tracking and copyright authentication method. Background technique [0002] Optical information hiding is a long-standing subject [1]. The ancient Chinese "Tibetan Poetry" can be said to be a simple, primitive, and popular information hiding, which once played an important role in the battle between the two armies. With the development of digital technology, information hiding has been given a new meaning. It mainly uses the insensitivity of human sensory organs and the redundancy of digital signals to hide secret information in a host signal without affecting the host. The effect and use value of the signal. On August 28, 2020, the Ministry of Commerce and the Ministry of Science and Technology jointly issued an announcement to add information hiding and discovery tec...

AI Technical Summary

Problems solved by technology

[0008] Although the existing methods can realize watermark embedding and correct extraction, there are still some defects in robustness, and it is difficult to correctly extract the corresponding watermark information for images that have been maliciously attacked or edited.

Therefore, it still cannot fully meet the requirements for copyright authentication and leak tracking, which require the watermark information to be completely and correctly extracted

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