Blockchain Image Copyright Protection via Pixel Obfuscation
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Solution Overview
Problem
The rapid dissemination of images on the internet has made it challenging to protect image copyrights, as existing solutions fail to effectively prevent plagiarism and ensure secure copyright tracking.
Innovation Solution
A blockchain-based image processing method that obfuscates a pixel matrix with copyright-related information, encrypts this information, and embeds it into the image, utilizing ciphertext to generate a target image that can be traced for copyright protection, leveraging the immutability of blockchain for secure tracking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If copyright information is embedded in image pixels for tracking, then copyright protection capability is improved, but the copyright information can be easily removed or tampered with by plagiarists
Solution Approach 1:
The patent introduces blockchain as an intermediary between the copyright information and the image. The copyright information is hashed and stored on the blockchain, while the image contains only a reference to this hash. This intermediary structure prevents direct tampering with the original copyright data, as any modification would require altering the blockchain, which is computationally infeasible due to its immutable chain structure.
Solution Approach 2:
The patent creates a cryptographic hash (copy) of the copyright information and stores it on the blockchain. The original image and its copyright data remain separate, with the image containing only a hash reference. This copying mechanism ensures that the actual copyright information cannot be altered without detection, as the hash would no longer match the stored value on the blockchain.
2Productivity
If copyright information is stored in plain text for easy access, then tracking efficiency is improved, but security of copyright information deteriorates
Solution Approach 1:
The patent transforms the copyright information from plain text to a cryptographic hash format before storing it on the blockchain. This parameter change (from readable text to hashed data) maintains the ability to quickly verify copyright ownership through hash comparison while simultaneously providing strong security. The hash function ensures that even if the hashed data is exposed, the original copyright information cannot be recovered.
3Reliability
If complex encryption is applied to copyright information, then security is improved, but processing speed and ease of operation deteriorate
Solution Approach 1:
The patent performs the cryptographic hashing of copyright information in advance, during the image upload process, and stores the hash on the blockchain before any potential plagiarism occurs. This preliminary action eliminates the need for complex real-time encryption/decryption operations during copyright verification. When checking for plagiarism, the system only needs to compute a hash of the suspect image and compare it with the pre-stored hash on the blockchain, which is a computationally simple and fast operation.
Data Source
AI summary
Methods, systems, and apparatus, including computer programs encoded on computer storage media, for blockchain-based image processing are provided. One of the methods comprises: obtaining, by a computing device, copyright-related information corresponding to an original image; sending, by the computing device, the copyright-related information to one or more blockchain nodes configured to obtain ciphertext information by encrypting the copyright-related information and to store the ciphertext information in the blockchain; obtaining, by the computing device, the ciphertext information from the blockchain; and performing, by the computing device, obfuscation on a pixel matrix of the original image based on the ciphertext information to generate a target image carrying the copyright-related information.