Novel image hiding method based on chaotic differential

A chaotic difference and image hiding technology, applied in the field of information security, can solve the problems of excessive calculation, seriousness, distortion, etc., and achieve the effect of reducing distortion, small calculation, good reliability and uniformity
CN104504646AInactive Publication Date: 2015-04-08CHONGQING COLLEGE OF ELECTRONICS ENG +1
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Patent Information

Authority / Receiving Office
CN Ā· China
Patent Type
Applications(China)
Current Assignee / Owner
CHONGQING COLLEGE OF ELECTRONICS ENG
Publication Date
2015-04-08
Estimated Expiration
Not applicable Ā· inactive patent

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Abstract

The invention discloses a novel image hiding method based on chaotic differential. The method mainly includes a hiding process of a transmitting end and a recovery process of a receiving end. At the transmitting end, firstly, a chaotic matrix with the size as same as that of a secret image is generated by the aid of secret keys seed1 and u, differential operation is performed for the chaotic matrix and the secret image to obtain a chaotic differential image, secondly, the position of each pixel in the secret image to be hidden in a public image is determined according to a random sequence obtained by a secret key seed2, and finally, the chaotic differential image is hidden in the public image through a common fusion technique. At the receiving end, the recovery process of the secret image is an inverse process of hiding the secret image at the transmitting end. The method is small in calculated amount and wider in applicable range, and is more reliable and uniform by the aid of chaotic encryption. The secret image before hiding is subjected to differential processing, the recovered secret image is lower in distortion, and the size of the public image does not need to be as same as that of the secret image.
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Description

technical field

[0001] The invention relates to the technical field of information security, in particular to a new image hiding method based on chaotic difference. Background technique

[0002] Today, the rapid development of network technology and multimedia information technology provides a lot of convenience for people to share information with each other, but at the same time, it also brings security risks. Confidential state information, company confidential information, and personal privacy information may be hijacked by malicious people, and the consequences will be disastrous. Digital image hiding technology is an important branch in the field of information security technology. It uses the weakness of people's visual organs to hide secret images in the carrier image, so that the hidden images cannot be sensed by the visual organs, so that they cannot be seen. to the purpose of the image being hidden. For a long time, the development of digital image hiding techno...

Claims

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