Image steganography method capable of resisting statistical detection and scaling attack

Abstract

The invention discloses an image steganography method capable of resisting statistical detection and scaling attack. The method comprises the steps of calculating a scaling factor, performing preprocessing and simulating a scaling process of the scaling factor for a carrier image, constructing an information actual embedding rule based on reverse interpolation operation, an information embedding algorithm based on position mapping and extracting information. According to the invention, the information actual embedding values and the information actual embedding points are constructed in a one-to-one correspondence manner; the invention provides an information embedding rule construction algorithm based on reverse interpolation operation. The extraction accuracy of information is ensured, the information can be correctly extracted from the image subjected to the scaling attack; the anti-scaling attack capability of the image steganography method is improved, and by adopting an information embedding algorithm based on position mapping, after the secret-loaded image is subjected to scaling attack, correct extraction of embedded information can be ensured, and the anti-statistical detection performance of the secret-loaded image subjected to scaling attack is effectively improved.

Description

technical field [0001] The invention relates to the technical field of image steganography and interpolation scaling, in particular to an image steganography method resistant to statistical detection and scaling attacks. Background technique [0002] At present, social communication apps have become an important carrier for human beings to publish news, transmit information, and share life. It is reported that the average global per capita spends about 2.3 hours on various social media every day, and sharing pictures on social platforms has become a kind of Fashion, more than 50% of the content on the Twitter social platform is rich in pictures and texts, and more and more people believe that "a picture is worth a thousand words". The wide application of various social communication apps has aroused people's concern about the security of private information transmitted through open channels. Traditionally, the main method to solve data transmission security is to encrypt th...

AI Technical Summary

Problems solved by technology

However, this method is ineffective against the more common scaling attacks based on bilinear interpolation and bicubic interpolation, where a large amount of embedded information is often lost

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