An image watermark embedding and tracing method and system

An image watermark and image technology, applied in the field of information security, can solve the problem that the image itself or the watermark is easy to be tampered or copied, and achieve the effect of preventing occlusion and tampering

Active Publication Date: 2019-05-17
密信(北京)数字科技有限公司
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Problems solved by technology

[0003] In view of this, the object of the present invention is to provide a method and system for image watermark embedding and traceability, so as to reduce image The problem that itself or the watermark is easy to be tampered with or copied, and adjust the transparency of the watermark to reduce the problem that the watermark blocks the content of the picture

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  • An image watermark embedding and tracing method and system
  • An image watermark embedding and tracing method and system
  • An image watermark embedding and tracing method and system

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Embodiment Construction

[0049] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making...

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Abstract

The invention provides an image watermark embedding and tracing method and system, and the method comprises the steps of extracting pixel points in a to-be-processed image according to a preset extraction strategy, and generating image watermark drawing points based on the extracted pixel points; encrypting the attribute information of the to-be-processed image containing the copyright informationbased on an encryption algorithm to generate encrypted information, and converting the encrypted information into binary sequence information; and redrawing the image watermark drawing point based ona gray algorithm, a graphic equipment interface GDI and the binary sequence information to obtain the image watermark. According to the embodiment of the invention, the watermark content is encryptedby using the encryption algorithm, and the color and transparency of the watermark are adjusted, so that the watermark content is prevented from being tampered, and the influence and shielding of thewatermark on a picture are reduced.

Description

technical field [0001] The invention relates to the technical field of information security, in particular to a method and system for image watermark embedding and traceability. Background technique [0002] With the rapid development of the Internet and multimedia technology, digital images, as the most important part of multimedia information, have been paid more and more attention to their copyrights. Nowadays, enterprises and individuals mainly protect their rights and interests by adding text or signatures to images, but the watermarking methods of most images are too simple, and the images themselves or the content of watermarks are easy to be tampered with or copied, resulting in many unauthorized Images licensed by others are exposed on the Internet, but the legitimate rights and interests of copyright owners cannot be properly protected. At the same time, the existing image watermarking technology, such as text watermarking, is easy to cover the content of the pict...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T1/00H04L9/08
Inventor 林皓严豪赵宇郝长海
Owner 密信(北京)数字科技有限公司
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