Research And Implementation Of Image Content Privacy Protection System

With the rapid development of the Internet and the popularity of mobile terminals,more and more users have chosen to use smart phones such as mobile phones to capture images and upload the captured images to personal social networks.At the same time,social networking sites aiming to make friends are endless,various photo sharing services have made people enjoy a pleasant online experience.However,while gaining a good experience,the user's personal privacy is also leaked along with the various channels of digital images.For example,most users share the photos on the social networking site and select the “Upload Original Image” option for better picture clarity.The original image files often contain privacy information such as the time and location of the filming;the images uploaded by the user on the social networking site,background areas,and lighting direction also reveal information such as the time and location of the filming;After the images are shared to the social platform,incidents of image infringement can also occur from time to time.With the popularity of various private cloud storages,users upload images to the cloud has become more and more normalized,but the account password is stolen.Taken,incidents such as the leakage of private images are also constantly appearing.Due to the particularity of digital image information and the diversity of transmission methods,the protection of personal privacy of users is facing great challenges.To solve the above problem,this paper designs and implements a privacy protection system for image content.For different uses of digital images,the system provides corresponding privacy protection policies so that the images do not reveal personal privacy when transmitted in cyberspace.Specifically work as follows:Firstly,by studying the current situation of digital image transmission in the cyberspace,this thesis analyzes the different requirements of user privacy protection,combined with the latest image privacy protection strategies,this thesis designs a set of privacy protection schemes for images,the solution aims at different digital images provide different kinds of privacy protection strategies.Secondly,according to the privacy protection scheme of image content,privacy protection system for image content is designed.The system consists of the following parts:(1)Analyze the information storage methods of different image formats and remove the sensitive components in the image attribute information.(2)Provides light-weight protection for image privacy,processing lighting information in images,and confusing users' shooting time.Using image restoration technology,the sensitive areas in the image are erased and repaired to prevent users from leaking sensitive information.(3)Provides two kinds of privacy protection methods for image privacy.One is to use image segmentation technology to achieve privacy protection of image content through simple interaction.The other uses pedestrian recognition technology to automatically implement privacy protection of image content.(4)Provide the protection of intellectual property and use digital watermarking technology to embed the image with identity information into the target image.(5)Providing a digital image encryption/decryption function to encrypt digital images to be uploaded to the private cloud memory to prevent leakage of the privacy image when the account password is stolen.Finally,the image privacy protection functions are tested one by one,and several privacy protection functions are integrated to implement an image content privacy protection system.