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A picture hiding method, restoration method and picture hiding system for protecting personal privacy

A personal privacy and image technology, applied in transmission systems, image data processing, image data processing, etc., can solve the problem of low image processing efficiency, and achieve the effect of avoiding encryption and improving image processing efficiency

Active Publication Date: 2020-08-04
ENJOYOR COMPANY LIMITED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the shortcomings of the existing image encryption method that the image processing efficiency is low when processing a large number of images, the present invention provides a method for hiding images and restoring personal privacy that has high image processing efficiency when processing a large number of images. Method and picture hiding system

Method used

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  • A picture hiding method, restoration method and picture hiding system for protecting personal privacy
  • A picture hiding method, restoration method and picture hiding system for protecting personal privacy
  • A picture hiding method, restoration method and picture hiding system for protecting personal privacy

Examples

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example

[0111] Example: A method of image hiding to protect personal privacy, the process of processing the original image: due to space limitations, only the process of processing the original image is demonstrated; first prepare two images and one is the image to be encrypted, such as figure 1 As shown, its size is 58.5KB, and the other is a display picture, which does not involve privacy information, such as figure 2 As shown, its size is 2.43KB. Include the following steps:

[0112] Step 1 Scan the storage bytes corresponding to the key tags in the original image (source. The section is 0xFFC0, the APP1 position is 2, and the storage byte is 0xFFE1. . . . . . The last one is EOI position 85297, storage byte is 0xFFD9. Collect storage bytes and positions to generate list;

[0113] Step 2 encrypts the key labels in the original image, assuming that the encrypted password pswd_code is 12345678:

[0114] Step 2.1 Fill the password pswd_code with the characters in the random...

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Abstract

A picture hiding method for protecting personal privacy comprises the steps of 1.1) determining a picture key tag parsing table; 1.2) scanning an original picture, and recording key tag storage bytes and corresponding positions to generate a list; 1.3) obtain a password character string according to an encrypted password or / and a randomly generated password, the password character string having a length the same as the number of key tags; 1.4) changing the key tag storage bytes in the list into password characters in the password character string; 1.5) sequentially taking out elements of the password character string and elements in the list to obtain a new string, and encrypting the new string to obtain an encrypted string; 1.6) writing in auxiliary information; and 1.17) after image start tag storage bytes covering up the picture is removed, splicing the remaining part to the tail part of arr_byte to complete the hiding of the original picture. Also provided are a picture restoration method for protecting personal privacy and a picture hiding system. According to the invention, the picture processing efficiency is high when massive pictures are processed.

Description

technical field [0001] The invention relates to the field of unstructured big data storage, and relates to a picture hiding method, restoration method and picture hiding system for hiding original picture information after technical processing of pictures (jpg files) that may leak personal privacy. Background technique [0002] For the public domain, with the rapid growth and popularization of social media, people have downplayed personal privacy issues because of the convenience of information exchange, and pictures uploaded to the Internet are often used maliciously; for individuals, people like to share personal pictures Stored in a private computer or mobile storage, when the computer is sent out for repair or the mobile storage device is lost, the pictures involving personal privacy are often leaked; for specific fields, such as medical diagnosis pictures in the medical field, these pictures often contain the patient's If personal information is not properly controlled ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T1/00H04L29/06
CPCG06T1/00G06T1/0021H04L63/0428
Inventor 于海龙李建元王辉吴越
Owner ENJOYOR COMPANY LIMITED
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