Image picture encipher and decipher method

An encryption method and screen technology, which is applied in the field of encryption and decryption of image screens, can solve problems such as changes in the image screen of the encrypted subject, and achieve the effect of preventing leaks
CN1870045AInactive Publication Date: 2006-11-29刘畅
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
刘畅
Publication Date
2006-11-29
Estimated Expiration
Not applicable · inactive patent

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Abstract

A method for enciphering and deciphering image pattern includes dividing a frame of original image pattern to be a numbers of region randomly and rearranging said divided regions to form a frame of enciphered image pattern, enabling to do said process cyclically to let enciphered image pattern be changed essentially, restoring original image pattern by carrying out retrace course of rearrangement for realizing deciphering when it is required.
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Description

【Technical field】

[0001] The invention relates to an encryption and decryption method of an image frame, in particular to an encryption and decryption method capable of substantially changing the image frame itself as the subject of encryption. 【Background technique】

[0002] At present, various technologies are adopted to solve image encryption. For example, Chinese patent application 01119110.4 entitled "A Method for Encrypting and Encrypting Optoelectronic Information" discloses a method for encrypting and encoding optoelectronic information. The application for the invention uses different colors or different An image or image group composed of gray pixels encodes graphics, images, documents, files and their compressed files, etc., to realize graphics, images, documents, and file encryption. In the prior art, the image frame itself, which is the subject of encryption, will not change substantially after the implementation of the above-mentioned technology is completed. ...

Claims

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