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

Method of using vulnerable watermark technology for digital image fidelity

A watermarking technology, digital image technology, applied in image data processing, image data processing, instruments, etc., can solve problems such as insufficient attention

Inactive Publication Date: 2008-02-20
HUAQI RES INST OF IMAGE COMPUTING
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Not enough attention has been paid to this issue

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
  • Method of using vulnerable watermark technology for digital image fidelity
  • Method of using vulnerable watermark technology for digital image fidelity
  • Method of using vulnerable watermark technology for digital image fidelity

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0073] The present invention will be further described in detail below in conjunction with the accompanying drawings, please refer to the accompanying drawings. The operation of embedding the digest watermark in Figure 1 can be divided into fourteen steps, and the operation of extracting the digest watermark can be regarded as the opposite process, a total of fifteen steps, see Table 1 and Table 2.

[0074]The steps of embedding abstract watermark method are as follows: First, through the main control program, control which processing module the image should enter, that is, judge the format information of the image: if the image is a 1bit image, perform the second to sixth steps ;If the image is an 8bit image, judge whether it is a color image; if yes, perform the tenth and eleventh steps; if not, then judge whether it is converted from a 1bit image; Six-step operation, and then convert the obtained 1-bit watermarked image into an 8-bit image; no, proceed to steps 7 to 9; if i...

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

This invention relates to a method for digital image fidelity with a weak watermark technology including a watermark method of insertion abstract and a method of pick-up abstraction, in which, the insertion method can insert the abstracted watermark in binary images, 8bit gray images, 8bit color images and 24 bit images to enter into different relative process programs according to formats of the images, the pick-up method includes the pick-up abstract watermark modules of binary images, 8bit grayness images, 8 bit color images and 24 bit images to be selected to enter into different modules in terms of the formats of the images, which inserts the abstract values of the image in a digital image by the digital abstract algorithm and the digital watermark technology and can test the change to 1 bit when data are inserted in the image and can not be seen by eyes.

Description

technical field [0001] The invention relates to using computer software to embed the abstract data of the image itself in the digital image, which can detect the change of 1 bit of the image. The "watermark" in the "A Method of Applying Fragile Watermark Technology to Digital Image Preservation" of the present invention refers to digital watermark, which is to directly embed some marking information related or irrelevant to the image content into the image, But it does not affect the use value of the original content, and it is not easy to be perceived or noticed by the human visual system. "Fragile watermark" means that after the image is subjected to any processing attack, the watermark information is completely destroyed. "Applied to digital images" means that our watermarking technology is applied to static images, rather than other multimedia information such as audio, video, and three-dimensional grids. The "fidelity method" indicates the purpose of our watermarking te...

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 Patents(China)
IPC IPC(8): G06T1/00
Inventor 田新刘曼
Owner HUAQI RES INST OF IMAGE COMPUTING
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