An image hiding method based on a video carrier and under an off-line controllable mechanism

An image hiding and video technology, applied in the field of information hiding, can solve the problems of low embedded watermark strength, sensitivity, poor robustness, etc., to achieve the effect of effective and controllable access, protection of privacy and confidential information

Active Publication Date: 2015-12-02
ANHUI UNIVERSITY
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  • Application Information

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Problems solved by technology

However, the shortcomings of this algorithm are: the embedded message is longer than the time spent; it can only process simple stream format files; in order to meet the invisible watermark, the embed

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  • An image hiding method based on a video carrier and under an off-line controllable mechanism
  • An image hiding method based on a video carrier and under an off-line controllable mechanism
  • An image hiding method based on a video carrier and under an off-line controllable mechanism

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Embodiment Construction

[0075] The technical solutions of the present invention will be described in detail below, but the protection scope of the present invention is not limited to the embodiments.

[0076] For ease of understanding and avoiding ambiguity, the symbols in the present invention are described accordingly:

[0077] DCT means discrete cosine transform; DWT means discrete wavelet transform; LSB means least significant bit; SVD means singular value decomposition. Arnold is a transformation that changes the spatial positions of all pixels in the original image matrix after multiple iterations to obtain a scrambled image. Such as figure 1 As shown, the color image in the present invention is embedded in the video carrier through the form of digital watermark embedding (that is, the process of color image confidential storage) is as follows:

[0078] 1) Obtain the Mac address of the machine, generate authorization times, and modify the encrypted file to a custom type;

[0079] 2) The carr...

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Abstract

The invention discloses an image hiding method based on a video carrier and under an off-line controllable mechanism. A key frame of a video is firstly subjected to 2-DWT transformation; then Arnold transformation is carried out on sub-bands; through characteristics of singular value decomposition and multi-resolution characteristics of wavelet transformation, images are embedded in sub-band singular values which have undergone scrambling; when the video is under different attacks, blind extraction of the image can be realized; and the blind extraction specifically comprises two steps which are color image confidential storage and color image extraction checking. As technology of embedding and extraction of the color image in the video and the technology of limited frequency checking and anti-copying in an image off-line condition, the method of the invention is the image confidential storage technology based on the video carrier and under the off-line controllable mechanism, and can solve problems of confidentiality and storage of confidential and private images, thereby reaching a purpose of protecting private and confidential information, and realizing validity and controllability access of the image in an extent of competence.

Description

technical field [0001] The invention relates to the field of information hiding, in particular to an image hiding method based on a video carrier under an offline controllable mechanism. Background technique [0002] With the development of the computer age, more and more users choose to store important data such as customer image data, intelligence image data, and private images in the form of data in devices such as networks, computers, mobile phones, flash drives, and mobile hard drives. However, many of the existing storage methods have serious security risks. Private data stored in the computer may be stolen when surfing the Internet; data can still be retrieved after deletion; especially the storage of private photos is the most attractive Worries, privacy security and even confidentiality security issues have become the heart disease of netizens and the heart disease of society. Currently, there are two main storage methods: [0003] 1. Store directly in the compute...

Claims

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Application Information

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IPC IPC(8): G06T1/00G06F21/16
Inventor 王喜崔杰姜海涛赵澍
Owner ANHUI UNIVERSITY
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