Contrast enhancement RDH method and system based on histogram movement

A histogram and contrast technology, applied in the field of image processing, can solve the problems of insufficient utilization of the histogram library, salt and pepper noise, etc., and achieve the effect of lossless information hiding, resistance to image processing and attacks, and good invisibility

Pending Publication Date: 2021-12-10
SHANDONG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Secondly, the utilization rate of the histogram library is not enough
Third, s

Method used

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  • Contrast enhancement RDH method and system based on histogram movement
  • Contrast enhancement RDH method and system based on histogram movement
  • Contrast enhancement RDH method and system based on histogram movement

Examples

Experimental program
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Example Embodiment

[0047] Example one

[0048]As shown, the present embodiment provides a histogram based on a movement of the RDH contrast enhancement method, according to the present embodiment, the method is applied to a server of illustration, it is understood that the method can also be applied to the terminal, further It may be applied and the system comprising a terminal and a server, and implemented by the interactive terminal and a server. The server may be a separate physical server, server cluster may be composed of a plurality of physical servers, or distributed system, may also provide cloud services, cloud database, cloud, functions cloud, cloud storage, a network server, the communication cloud, intermediate parts service, domain name services, security services CDN, as well as artificial intelligence, big data and cloud computing platforms and other basic cloud server services. Terminal can be smart phones, tablet PCs, notebook computers, desktop computers, smart speakers, smart watc...

Example Embodiment

[0081] Example 2

[0082] This embodiment provides a contrast enhancement RDH system based on histogram movement.

[0083] A contrast enhancement RDH system based on histogram movement, including: baseline embedding module and extended embedding module;

[0084] The baseline embedding module is configured to process the gradation image by combining the histogram unit, to obtain a reserved space; embedding the iterative grayscale image edge information and the additional data to the reserved space, to obtain an enhanced image;

[0085] The extended embedding module is configured to splicing the enhanced image with additional data extracted by the PEH transform, cover the original image, to obtain the original image after the grayscale image is restored.

[0086] This embodiment proposes an RDH frame with contrast enhancement. The frame is embedded and expanded from two parts by baseline. In the baseline portion, the histogram is first retained by the consolidated histogram unit. Af...

Example Embodiment

[0088] Example three

[0089] This embodiment provides a computer readable storage medium, which stores a computer program that implements the steps of the above-described embodiment-based comparidity enhancement RDH method when executed by the processor.

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Abstract

The invention belongs to the technical field of image processing, and provides a contrast enhancement RDH method and system based on histogram movement. The method comprises a baseline embedding process and an expansion embedding process, the baseline embedding process comprises the following steps of: processing a grayscale image by combining a histogram unit to obtain a reserved space; embedding edge information and additional data of the iterative grayscale image into the reserved space to obtain an enhanced image; and the extension embedding process comprises the following steps: splicing the enhanced image with additional data of the original image extracted by adopting PEH transformation, and covering the original image to obtain the original image after the gray level image is restored.

Description

technical field [0001] The invention belongs to the technical field of image processing, and in particular relates to a contrast enhancement RDH method and system based on histogram movement. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] Reversible Data Hiding (RDH) is a technique for reversibly hiding data into digital media. Using RDH technology can accurately extract hidden information and restore the original image losslessly. RDH is useful in digital image marking applications. In cloud storage, the server can embed additional data, such as timestamps, tags, user information, notes, and pictures uploaded by users. Since the messages are appended to the image, the server can achieve better management and save storage overhead. Furthermore, the original content can be restored exactly before the user downloads it. In the past two...

Claims

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Application Information

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IPC IPC(8): G06T1/00G06T5/40G06T5/00
CPCG06T1/005G06T5/40G06T5/001G06T2201/0203
Inventor 王春兴王德艳万文博
Owner SHANDONG NORMAL UNIV
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