Grey wolf optimization algorithm and complete ternary tree structure wavelet domain color multi-watermark method

An optimization algorithm and ternary tree technology, applied in computing, image data processing, instruments, etc., to achieve the effect of improving embedding capacity, balancing robustness, and improving robustness

Pending Publication Date: 2020-01-24
TIANJIN UNIV
View PDF4 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the embedding factor in the usual watermarking technology is determined by artificial experiments, and there are chances and uncertainties.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Grey wolf optimization algorithm and complete ternary tree structure wavelet domain color multi-watermark method
  • Grey wolf optimization algorithm and complete ternary tree structure wavelet domain color multi-watermark method
  • Grey wolf optimization algorithm and complete ternary tree structure wavelet domain color multi-watermark method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0093] The present invention aims to propose a wavelet domain color multi-watermark technology based on gray wolf optimization algorithm and complete ternary tree structure. This digital watermark technology mainly aims at how to determine the dynamic embedding factors corresponding to different watermark images in the watermark embedding process. A gray wolf optimization algorithm (GWO) is used to optimize the watermark embedding process, and through the introduction of ternary tree encryption technology, multiple color watermark images are encrypted to improve the robustness of the watermark. The proposed ternary tree-grey wolf optimization (Tree-GWO) watermarking scheme can adjust the balance between the invisibility, robustness and capacity of the watermark. In addition, it can also effectively resist known noise attacks, shear attacks, rotation attacks and other attacks. For this reason, the technical scheme adopted by the present invention is, based on the gray wolf opti...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention belongs to the field of digital image watermarking technology and copyright protection, and provides a wavelet domain color multi-watermarking technology, which can adjust the balance among invisibility, robustness and capacity of watermarks, and can also effectively resist known noise attacks, shearing attacks, rotation attacks and other attacks. Therefore, according to the grey wolf optimization algorithm and complete ternary tree structure wavelet domain color multi-watermark method, in the watermark embedding process, three color watermark images are firstly encrypted into agrey level image through a ternary tree encryption technology; then, wavelet transformation is carried out on the color host image, a selected frequency part is transformed into a YCbCr color space, then singular value decomposition is carried out, and the multiple encrypted color watermarks are embedded into a singular value part of the carrier image; and finally, the singular value part containing the secret image is combined with the feature vector, and inverse wavelet transform is performed to obtain a carrier image containing the secret image. The method is mainly applied to occasions where image watermarks are embedded.

Description

technical field [0001] The invention belongs to the field of digital image watermark technology and copyright protection, and relates to a wavelet domain color multi-watermark technology based on a gray wolf optimization algorithm and a complete ternary tree structure. Background technique [0002] With the continuous development of computer technology, while digital products (such as images, audio, video, etc.) bring convenience to people, these digital products also face problems such as illegal copying, duplication and dissemination. How to protect these digital products from illegal acquisition or copying is an urgent research topic in the field of network security. In order to solve the above problems, digital watermarking technology and encryption technology have been proposed one after another. [0003] The main principle of digital watermarking technology is to embed watermarks with copyright information into digital multimedia without affecting the original value o...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G06T1/00G06F21/16
CPCG06T1/0021G06F21/16G06T2201/0202
Inventor 唐晨申玉馨
Owner TIANJIN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap