Pattern coding method and device, pattern decoding method and device
A pattern coding and pattern technology, applied in the direction of image communication, electrical components, etc., can solve the problems of low anti-interference, loss of digital watermark information, digital watermark cannot be applied to dynamically changing images, etc., and achieve low image resolution requirements and anti-interference high effect
Active Publication Date: 2022-03-15
ALIPAY (HANGZHOU) INFORMATION TECH CO LTD
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, digital watermarking technology has the following defects: digital watermarking can only be added to high-resolution images, and digital watermarking cannot be added to low-resolution images; digital watermarking cannot be applied to dynamically changing images, such as screenshots during mobile phone application operations; in addition, anti-interference Low, lossy compression or overall shrinkage of high-definition images will result in the loss of digital watermark information. Digital watermark information can only be retained when the original image is distributed. If it is sent by taking pictures, the digital watermark information will be lost
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0063] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the specification. However, this specification can be implemented in many other ways different from those described here, and those skilled in the art can make similar extensions without violating the connotation of this specification, so this specification is not limited by the specific implementations disclosed below.
[0064] Terms used in one or more embodiments of this specification are for the purpose of describing specific embodiments only, and are not intended to limit one or more embodiments of this specification. As used in one or more embodiments of this specification and the appended claims, the singular forms "a", "the", and "the" are also intended to include the plural forms unless the context clearly dictates otherwise. It should also be understood that the term "and / or" used in one or more embodiments of the present specification refers t...
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
Login to View More Abstract
This specification provides a pattern encoding method and device, and a pattern decoding method and device, wherein the pattern encoding method includes: obtaining a pattern to be encoded; disassembling the pattern to be encoded into a plurality of preset basic graphics, and determining the pattern to be encoded The graphics attribute corresponding to the basic graphics contained in the graphics attribute and the first drawing parameter of the graphics attribute; the first drawing parameter of the graphics attribute is adjusted to construct at least one second drawing parameter of the graphics attribute; and the graphics The attributes are respectively mapped with each of the first drawing parameter and the at least one second drawing parameter to generate a mapping table. Using the pattern encoding method in this specification realizes the generation of multiple patterns with slight differences from one pattern based on the graphic attributes and drawing parameters of the pattern, and achieves the same effect as the watermark. The pattern coding method requires low image resolution and can be applied to dynamically changing images with high anti-interference.
Description
technical field [0001] This specification relates to the technical field of image watermarking, in particular to a pattern encoding method and device, and a pattern decoding method and device. This specification relates to both a computing device and a computer-readable storage medium. Background technique [0002] With the development of image watermarking technology, digital watermarking has been widely used. [0003] In the prior art, digital watermarking technology is used to implement copyright tracking, copyright declaration and content tamper-proofing of multimedia content. However, digital watermarking technology has the following defects: digital watermarking can only be added to high-resolution images, and digital watermarking cannot be added to low-resolution images; digital watermarking cannot be applied to dynamically changing images, such as screenshots during mobile phone application operations; in addition, anti-interference Low, lossy compression or overal...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H04N1/32
CPCH04N1/32149H04N1/32267
Inventor 吴玉强
Owner ALIPAY (HANGZHOU) INFORMATION TECH CO LTD