Partial Image Encryption for Privacy Protection
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Solution Overview
Problem
There is a lack of security features in cloud-based applications and social networks to protect users' privacy when sharing digital images or videos, as users, especially young people or children, may inadvertently share private information without considering the consequences.
Innovation Solution
A method is introduced that involves encrypting a selected region of an image or video before uploading it, using a multimedia device equipped with an image capturing unit, region selection, and encryption unit, allowing only authorized individuals to decrypt and access the protected content using a password or decryption key.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the whole image is encrypted, then privacy protection is improved, but ease of operation and sharing is worsened
Solution Approach 1:
The patent divides the image into multiple regions, encrypting only the private region containing sensitive information while keeping the non-private region unencrypted. This segmentation allows selective protection of privacy-critical areas without preventing sharing of the entire image, thus resolving the contradiction between privacy protection and ease of sharing.
Solution Approach 2:
The patent applies different encryption qualities to different regions of the image: the private region is encrypted to ensure privacy protection, while the non-private region remains unencrypted to facilitate easy sharing. This local differentiation of quality resolves the contradiction by providing high security where needed and high accessibility where not needed.
2Reliability
If a security feature is added to protect privacy, then reliability is improved, but device complexity is worsened
Solution Approach 1:
The patent uses segmentation to identify and encrypt only the private region of the image, rather than encrypting the entire image. This reduces the computational complexity and processing requirements compared to full-image encryption, while still providing reliable privacy protection for sensitive information.
Solution Approach 2:
The patent applies partial encryption only to the necessary private region rather than performing excessive full-image encryption. This partial action achieves the required privacy protection reliability while minimizing the additional device complexity and computational overhead.
Data Source
AI summary
A method including: providing an image; encrypting an encryption region of the image, the encryption region is less than the whole region of the image; keeping a remaining region of the image unencrypted to provide a partially encrypted image; and storing the partially encrypted image.