Information hiding method and device, detection method and device, and anti-counterfeiting tracing method

Abstract

The invention discloses an information hiding method and apparatus, a detection method and a device, and an anti-counterfeiting tracing method. The information hiding method comprises the steps of converting hidden information into a hidden information binary image, and performing coding scrambling; discrete cosine transform is performed on the image sub-blocks in the blue channel image of the target area image according to the hidden information binary image; modifying the intermediate frequency coefficients meeting preset requirements according to pixel values of pixels in the hidden information binary image corresponding to the image sub-blocks to obtain a modified coefficient matrix; and performing inverse discrete cosine transform on the modified coefficient matrix to obtain a blue channel image of the target area image embedded with the hidden information, and replacing the blue channel image of the target area image to obtain a carrier image embedded with the hidden information.According to the method, the invisibility of the hidden information of the transform domain is combined, the intermediate frequency coefficients meeting the preset requirements in the image sub-blocks are modified, and the hidden information is embedded into the carrier image, so that the robustness of information hiding is improved.

Description

technical field [0001] The invention relates to the technical field of anti-counterfeiting traceability, in particular to an information hiding method and device, a detection method device, and an anti-counterfeiting traceability method. Background technique [0002] This section is intended to provide a background or context to embodiments of the invention that are recited in the claims. The descriptions herein are not admitted to be prior art by inclusion in this section. [0003] With the rapid development of computer technology and the Internet, electronic information has shown explosive growth, and the accompanying information security is particularly important. Based on this, information hiding technology came into being. Information hiding technology, that is, information hiding, will play an important role in protecting information from damage in the future network. Information hiding is a method of hiding confidential information in a large amount of information t...

AI Technical Summary

Problems solved by technology

[0005] However, the existing information hiding methods are not robust enough to effectively resist attacks such as filtering and compression.

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