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Reversible information hiding method based on blocked self-adaptive histogram translation

A histogram translation and information hiding technology, which is applied in image enhancement, image analysis, image data processing, etc., to achieve the effect of improving the overall embedding rate, embedding information security, and improving the peak signal-to-noise ratio

Inactive Publication Date: 2016-04-13
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most data hiding algorithms will irreversibly distort the image, but in some practical applications, image changes caused by embedded information are unacceptable

Method used

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  • Reversible information hiding method based on blocked self-adaptive histogram translation
  • Reversible information hiding method based on blocked self-adaptive histogram translation
  • Reversible information hiding method based on blocked self-adaptive histogram translation

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Embodiment Construction

[0026] The drawings are for illustrative purposes only, and should not be construed as limitations on this patent; in order to better illustrate this embodiment, some parts in the drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product;

[0027] For those skilled in the art, it is understandable that some well-known structures and descriptions thereof may be omitted in the drawings. The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0028] Such as figure 1 , is a flowchart of a reversible information hiding method based on block adaptive histogram translation in the method of the present invention, and its specific steps are as follows:

[0029] (1) Blocking and adaptive selection of the carrier image to embed blocks, specifically:

[0030] (11) Divide the carrier image into M sub-blocks of N*N size, and scramble it;

[0031] (12) The scr...

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Abstract

The invention relates to the field of multimedia information security, in particular relates to a reversible information hiding method based on blocked self-adaptive histogram translation. The method comprises the following steps: (1) blocking a carrier image, and computing a peak value of each sub-block histogram; (2) self-adaptively selecting a sub-block for embedding information according to embedding capacity of each sub-block; (3) adopting a method for self-adaptively selecting histogram translation direction while embedding the information. The invention is a novel histogram translation method which is capable of effectively embedding the information and losslessly extracting the embedded information and recovering an original image; through the adoption of the blocked method, the embedded information is safer and the integral embedding rate is improved, the self-adaptive selected histogram translation direction can effectively improve the peak signal to noise ratio of the image to further improve the image quality, thereby providing help for the medical treatment, military and the like applications. Through the adoption of the method, the higher the precision of the image is, the better the reversible information hiding effect is.

Description

technical field [0001] The invention relates to the field of multimedia information security, in particular to a reversible information hiding method based on block adaptive histogram translation. Background technique [0002] Image data hiding is to hide useful information in public images for transmission and dissemination. Most data hiding algorithms will cause irreversible distortion to the image, but in some practical applications, the image change caused by embedded information is unacceptable. For example, in military, medical and other fields, not only the embedded information is of great significance, but the original carrier image is also indispensable. The purpose of reversible information hiding technology is that users can not only extract the embedded information completely, but also restore the original image without loss. Not only in the military and medical fields, reversible information hiding technology has a broad development space, but also in the judi...

Claims

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Application Information

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IPC IPC(8): G06T5/40G06T5/00
CPCG06T5/40G06T2207/20012G06T5/77
Inventor 黄丹黄方军
Owner SUN YAT SEN UNIV
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