High-capacity image steganography method

Abstract

The invention belongs to the technical field of image steganography, and particularly relates to a high-capacity image steganography method. The method comprises the steps of inputting the carrier image and the two secret images into a trained image steganography model to obtain a secret carrying image and two extraction images; the image steganography model comprises a hiding stage and an extraction stage; the hiding stage comprises a carrier image preprocessing network, a secret image preprocessing network and a hiding network; and the hidden network is used for processing the output of the cascaded carrier image preprocessing network and the output of the secret image preprocessing network to obtain a secret-carrying image containing two secret images. According to the method, the two secret images can be embedded into the carrier image at the same time to obtain the secret-carrying image, so that the visual effect of the secret-carrying image is consistent with that of the carrier image, the steganography capacity is remarkably improved, and the imperceptibility and the detection resistance of the secret-carrying image are kept; moreover, two extracted images can be extracted, and the two extracted images and the two secret images are basically consistent in visual effect.

Description

technical field

[0001] The invention belongs to the technical field of image steganography, and in particular relates to a large-capacity image steganography method. Background technique

[0002] In recent years, with the rapid development of communication technology, information security issues accompanying communication technology have attracted the attention of individuals, enterprises, governments and related research fields. During the communication process of some individuals or organizations, the confidential information they transmit often does not want to be intercepted by a third party, or even to be perceived by a third party. At the same time, a large number of digital media works generated in modern networks, holders It is often hoped that the copyright it owns can be protected. For such requirements, previous cryptography techniques cannot meet them well. Steganography, as an information hiding technology that pursues imperceptibility, embeds confidential inf...

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