Image steganography method and device, electronic device and medium

Abstract

The invention provides an image steganography method and device, an electronic device and a medium. The method comprises the steps of S1, generating a first distortion cost graph through a carrier image; generating a first secret-carrying image according to the steganography information and the first distortion cost graph by adopting a differentiable embedding method; s2, inputting the first secret-loaded image into a steganalysis network model, and performing back propagation to obtain a first gradient of a first distortion cost graph; s3, updating the first distortion cost graph according tothe first gradient to obtain a second distortion cost graph, and obtaining a second secret-carrying image according to the second distortion cost graph; and S4, repeating the steps S2-S3, updating the Nth distortion cost graph according to the Nth gradient, obtaining an (N + 1) th distortion cost graph, obtaining an (N + 1) th secret-carrying image according to the (N + 1) th distortion cost graph, the (N + 1) th secret-carrying image being a final secret-carrying image capable of spoofing network detection, and N is greater than or equal to 5. Through the image steganography method providedby the invention, the problem of low anti-detection capability of the secret-carrying image can be solved.

Description

technical field [0001] This application designs the fields of image steganography, neural network and adversarial examples, and specifically relates to image steganography methods, devices, electronic equipment and media. Background technique [0002] The basic principle of image steganography is to hide the secret information that needs to be transmitted into these redundant information by using the redundant information in the image that is difficult for human eyes to perceive, and realize the transmission of secret information by means of image transmission. Since the process of hiding information into an image usually does not change the normal perceptual characteristics of the image, it is difficult for potential attackers to perceive the existence of secret information, thus ensuring the safe and covert transmission of information. Image steganography can also be combined with encryption, scrambling, coding and other technologies, so that even if the image written with...

AI Technical Summary

Problems solved by technology

[0005] The image steganography method, device, electronic equipment, and medium provided by the present invention are at least used to solve the problems of low anti-detection ability of secret-carrying images, fixed steganalysis network model structure, and ineffective use of gradient values

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