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JPEG image information hiding method based on data flow

A technology of image information and data flow, applied in the field of information hiding, it can solve the problems of poor concealment, complicated operation and large amount of calculation, and achieve the effect of ensuring quality, good concealment and small amount of calculation.

Active Publication Date: 2017-08-18
XIAN UNIV OF SCI & TECH
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to provide a method for hiding information of JPEG images based on data streams, so as to solve the problems of complex calculation, large amount of calculation and poor concealment in the prior art

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  • JPEG image information hiding method based on data flow
  • JPEG image information hiding method based on data flow
  • JPEG image information hiding method based on data flow

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Embodiment Construction

[0038] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0039] The invention discloses a data stream-based JPEG image information hiding method, and this embodiment uses a 512*512 lena image as a carrier image, and the implementation platform is Huawei honor H30-T10, and the android version is 4.4.2. Such as figure 1 shown, including the following steps:

[0040] Step 1. Read each complete field in the data stream of the original JPEG image file, that is, each complete field in the carrier JPEG image file. Reading each complete field is for subsequent embedding between any two complete fields Self-made fields, when reading, use the binary file input stream to read the original JPEG image file, and read each complete field in the original JPEG image file data stream. The original JPEG image file in this embodiment is as figure 2 As shown, it is a lena image.

[0041] The original JPEG image fi...

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Abstract

The invention discloses a JPEG image information hiding method based on a data flow. The method comprises the following steps of 1, reading each complete field in the original JPEG image file data flow; 2, generating a self-built field accordant with an JPEG coding protocol by using secret information, wherein the self-built field comprises a COM field and an APPn field, each of the COM field and the APPn field comprises a tab code part and a data part, the tab code part is the front two bytes of the self-built field, and the front two bytes of the data part indicate the size of data; 3, embedding the self-built field generated in the step 2 between the two complete fields in the step 1, thus acquiring the JPEG image file data flow including the secret information; 4, storing or sending the JPEG image data flow including the secret information; and 5, extracting the secret information in the PEG image file data flow including the secret information by using the tab code. Compared with traditional air domain and frequency domain methods, the method provided by the invention is small in computation amount, and only need to process the image data flow, so as to be extremely suitable for being implemented in a smart mobile terminal.

Description

[0001] 【Technical field】 [0002] The invention belongs to the technical field of information hiding, and in particular relates to a data stream-based method for hiding JPEG image information. [0003] 【Background technique】 [0004] With the rapid development of the Internet and smart mobile terminals, the distribution of multimedia information has grown exponentially, and corresponding information security issues have become more prominent, such as theft and interception of confidential information, etc. Information hiding is one of the effective solutions. It hides the information to be hidden in the multimedia file in a concealed way as possible. Information hiding technology plays an important role in the field of information security, and it is of great significance to military, intelligence, and national security. [0005] As an important branch of information hiding, image information hiding has been developed for many years. There are many information hiding methods f...

Claims

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Application Information

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IPC IPC(8): H04N19/467
CPCH04N19/467
Inventor 张释如李启迪周诠李小娜
Owner XIAN UNIV OF SCI & TECH