Image-based contourlet information hiding method

Abstract

The invention discloses a contourlet information hiding method based on images. The contourlet information hiding method is capable of resisting geometric attacking information such as image rotation, scale vibration, shearing, combination attack and warping, when only part images exist, the contourlet information hiding method can still ensure the specific hiding positions of information according to extracted or constructed characteristics so as to detect the hidden information in the images; the contourlet information hiding method can be applied to multi-media carrier copyright and other fields such as secret communication and electronic countermeasure; good visual imperceptibility of the information hiding method is achieved, tracks of information hiding can not be detected, and meanwhile balance of imperceptibility of information hiding and robustness is achieved; and a circular translation operation is adopted before contourlet transformation is conducted to partial invariant feature image blocks, and therefore the phenomenon of pseudo-Gibbs generated in the process of image hiding information can be restrained well.

Description

technical field [0001] The invention relates to the field of information hiding, in particular to an image-based contour wave information hiding method. Background technique [0002] Information hiding is a very important information processing technology in the fields of multimedia information security, confidential communication, electronic countermeasures, and copyright protection. And to ensure the carrier copyright security and so on. The quality of the information hiding method is directly related to the success of multimedia carrier authentication, copyright owner confirmation, electronic countermeasures and other aspects. [0003] In the current existing technology, in order to realize information hiding, there are the following two ways: [0004] The first information hiding method based on the spatial characteristics of the image. This method mainly hides information directly on the pixels of the image, or analyzes the spatial statistical characteristics of the i...

AI Technical Summary

Problems solved by technology

The advantage of the information hiding method based on the image transformation characteristics is that it has a clear physical meaning, and can combine the human visual perception model and the statistical characteristics of the image itself to find the optimal hiding space of information, and the imperceptibility and robust performance are better. At the same time, it is compatible with image compression standards. The disadvantage of this method is that it is less robust to geometric attacks such as image rotation, scale transformation, shearing, combination attack, and distortion.

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