Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Image spatial domain adaptive watermark based on JND model

An adaptive, watermarking technology, applied in image data processing, image data processing, instruments, etc., to achieve the effects of small embedding distortion, reducing embedding distortion, and improving embedding performance

Pending Publication Date: 2020-12-01
江苏水印科技有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The embedding strength of the watermark in the general image spatial watermarking method is not adjusted adaptively, which will cause the traces of the embedded information to be easily detected

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
  • Image spatial domain adaptive watermark based on JND model
  • Image spatial domain adaptive watermark based on JND model
  • Image spatial domain adaptive watermark based on JND model

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on The embodiments of the present invention and all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0041] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Several embodiments of the invention are shown in the drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the present invent...

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 discloses an image spatial domain adaptive watermark based on a JND model. A digital image watermark system mainly comprises two main steps of 1, determining a watermark embedding scheme; 2, the watermark embedding strength is determined, and under the condition of ensuring a certain embedding capacity, the embedding strength of the airspace watermark is adaptively determined by fully considering the relationship between the current pixel value and the adjacent pixels, so that the imperceptibility of the watermark is improved, and the embedding distortion of the image is effectively reduced. Compared with the prior art, the method considers the self-adaptive determination of the embedding intensity for different embedding areas instead of adopting the same embedding intensity, so that the imperceptibility of the watermark can be more effectively improved, and the embedding distortion is reduced. For the determination of the watermark embedding intensity, the method not only considers the current single pixel value, but also considers the relationship with the adjacent pixels. According to the invention, the embedding capacity is satisfied, the embedding strength is maximized, the embedding distortion is minimized, and the embedding performance is improved.

Description

technical field [0001] The invention relates to an image self-adaptive watermark technology, in particular to a space-domain self-adaptive watermark method. Background technique [0002] With the rapid development of the Internet and multimedia technology, the dissemination and exchange of information has been accelerated. People can easily download the required digital media information through the network, and even use various editing tools to modify the original data before dissemination. It will lead to copyright disputes, content authenticity, information security and many other issues. And these problems will harm the owner's personal interests, or threaten national security. In order to protect the copyright and security of digital media, digital watermarking technology has been proposed and widely used. [0003] Digital image watermarking technology refers to embedding watermark information into the host image, while ensuring that the embedded watermark is impercep...

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): G06T1/00
CPCG06T1/0021
Inventor 周立波钱阳袁晓东
Owner 江苏水印科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com