Reversible information hiding method for bit plane compressed encrypted image

Abstract

The invention provides an encrypted image reversible information hiding method based on bit plane compression. For an image owner, the method comprises the steps: firstly, performing median edge detection prediction on an original image to obtain a prediction error; secondly, calculating a bit plane compression space by using an adaptive selection method; thirdly, selecting an available bit plane to carry out self-adaptive variable-length block coding so as to code the image block; and finally, generating an encrypted connection information flow and sending the encrypted connection information flow to an information hider. For an information hiding person, the information hiding person encrypts secret information by using the hiding secret key and embeds the secret information into the vacated redundant space to obtain a secret-containing image. For the receiver, if the receiver has the encryption key, the original image can be obtained through decryption; if the mobile terminal has a hidden key, the mobile terminal can be used for decrypting and acquiring secret information; if the two secret keys are contained at the same time, the original image and the secret information can be decrypted at the same time. Compared with other existing related work, the scheme provided by the invention has relatively excellent performance in embedding capacity.

Description

technical field [0001] The invention belongs to the field of image content security of information security, and in particular relates to a reversible information hiding method of an encrypted image with adaptive bit plane compression. Background technique [0002] The information and information technology revolution that is unfolding around the world is playing a decisive role in the direction of social change in an unprecedented way, and the result will inevitably lead to the realization of the information society in the world. Firstly, the introduction of information processing technologies in the wide-ranging work processes of production activities, thereby allowing a new level of automation in these departments; secondly, the integration of telecommunications and computer systems, which can transfer information It is transmitted to any place in the world, so that all aspects of human activities show the characteristics of information activities; finally, information an...

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Problems solved by technology

The information hiding technology based on digital image hides information into the image carrier by slightly m

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