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

Electronic stamp based visible digital image watermark embedding and detection methods

A technology of electronic stamps and digital images, applied in image data processing, image data processing, instruments, etc., can solve problems such as inability to embed watermarks, weak robustness, and fragile robustness.

Active Publication Date: 2016-07-06
江苏实达迪美数据处理有限公司
View PDF3 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Generally, digital image watermarking has the following problems: 1) invisible digital image watermarking cannot give a more intuitive feeling of whether legal files have been watermarked or not; 2) the robustness of common visible digital image watermarking is generally weak, especially for Case-specific robustness to rotation, scaling, compression, and noise is brittle

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
  • Electronic stamp based visible digital image watermark embedding and detection methods
  • Electronic stamp based visible digital image watermark embedding and detection methods
  • Electronic stamp based visible digital image watermark embedding and detection methods

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0078] The following will combine figure 1 with figure 2 The embedding and detection method of the visible digital image watermark based on the electronic seal provided by the present invention is described in detail, which is an optional embodiment of the present invention. It can be considered that those skilled in the art will not change the spirit and content of the present invention. , to be able to modify and polish it.

[0079] The following describes the technical solution of the present invention in two ways for each step, in order to describe the claimed and disclosed solutions of the present invention in a more comprehensive, detailed and accurate manner.

[0080] The invention provides a method for embedding a visible digital image watermark based on an electronic seal, comprising the following steps:

[0081] S00: Establish the rules and mapping relationships based on the conversion of each code through the following steps:

[0082] S001: Based on the ASCII ta...

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 provides electronic stamp based visible digital image watermark embedding and detection methods. The embedding method comprises the following steps of S10: representing a to-be-embedded watermark by using the values of ASCII codes and then converting the codes according to predetermined rule and mapping relationship; S20: scanning an electronic stamp of the to-be-embedded watermark to obtain pixel information of the to-be-embedded watermark; S30: according to the obtained pixel information and watermark information, confirming watermark embedding way and position; and S40: according to the confirmed watermark embedding way and position, performing watermark embedding.

Description

technical field [0001] The invention relates to a watermark realization method of an electronic seal, in particular to an embedding and detection method of a visible digital image watermark based on an electronic seal. Background technique [0002] Since various electronic forms are used more and more frequently, the identification of the authenticity and legitimacy of electronic forms is an unavoidable subject. The invention proposes a visible digital image watermark technology for electronic seals widely used in electronic forms. The technology aims to provide identification basis for the authenticity and legitimacy of electronic forms by embedding visible digital image watermarks in electronic seals in electronic forms. [0003] Generally, digital image watermarking has the following problems: 1) invisible digital image watermarking cannot give a more intuitive feeling of whether legal files have been watermarked or not; 2) the robustness of common visible digital image w...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G06T1/00
CPCG06T1/0021
Inventor 林涵阳张映生詹永照柯佳林庆池生友
Owner 江苏实达迪美数据处理有限公司
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