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Robust digital watermark inserting and detecting method based on supporting vector

A support vector machine and digital watermarking technology, applied in image data processing, image data processing, instruments, etc., can solve the problems that the robustness of the watermarking algorithm cannot be effectively guaranteed, and the training process is slow, so as to achieve good watermark detection efficiency and robustness sexual effect

Inactive Publication Date: 2007-06-06
付永钢
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AI Technical Summary

Problems solved by technology

Its shortcoming is that the introduction of neural network can solve the robustness problem of watermark detection to a certain extent, but because the training process of neural network is relatively slow, and at the same time, when the embedded watermark capacity is insufficient, the training result cannot effectively guarantee the watermark detection. Algorithm Robustness

Method used

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  • Robust digital watermark inserting and detecting method based on supporting vector
  • Robust digital watermark inserting and detecting method based on supporting vector
  • Robust digital watermark inserting and detecting method based on supporting vector

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Embodiment Construction

[0019] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings: this embodiment is implemented under the premise of the technical solution of the present invention, and detailed implementation methods and processes are provided, but the protection scope of the present invention is not limited to the following implementations example.

[0020] Suppose the image I to be embedded with watermark is a M×N 24-bit true-color picture, and record its red, green, and blue components as R, G, and B, respectively. The block diagram of watermark embedding process is shown in Figure 1.

[0021] 1. Watermark embedding process:

[0022] a. Watermark signal generation. According to the given key K 1 Randomly generate a reference watermark signal Rf=r with length K 1 r 2 ...r K . The real effective data of the watermark is a binary sign map with a size of m×n. Then connect the reference watermark signal with the real watermark...

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Abstract

The invention is a robust digital watermark embedding and detecting method based on the supported vector machine, which belongs to multi-media information security area. The invention consists of watermark embedding and watermark detecting. In the process of watermark embedding, a randomly generated referencing watermark is embedded to host media data together with real watermark; in the process of watermark detecting, the well trained supported vector machine can detect watermark with embedded watermark key. The supported vector machine is trained to study the attack with natural image characteristics, referencing watermark data and embedded watermark position data.

Description

technical field [0001] The invention relates to a method in the technical field of multimedia information security, in particular to a robust digital watermark embedding and detection method based on a support vector machine. Background technique [0002] With the popularization and development of information technology and the Internet, more and more digital information is disseminated through the network, and the copying and dissemination of digital information has become easier and simpler. Digital watermarking technology is specially developed to solve the problem of effectively protecting the copyright of digital products. Compared with traditional encryption protection, digital watermark technology has an important advantage that it provides a seamless connection between users and digital products, so that users can not only easily access digital media that has been protected by transparent watermarks, but also It can provide a certain degree of rights and interests p...

Claims

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Application Information

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IPC IPC(8): G06T1/00
Inventor 付永钢申瑞民牛常勇王加俊
Owner 付永钢
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