Joint Hamming Coding for High Capacity Lossless Image Encryption and Embedding Scheme
學年 110
學期 2
出版(發表)日期 2022-02-14
作品名稱 Joint Hamming Coding for High Capacity Lossless Image Encryption and Embedding Scheme
著者 Chen, Shih-hsin
著錄名稱、卷期、頁數 Applied Sciences 2022 12(4), 1966
摘要 Encryption is a widely used solution to prevent privacy leakage and illegal spread when sensitive images are uploaded to cloud storage. Hiding technology also allows confidential data to be embedded into encrypted images for secret communication. As image accuracy without distortion is essential within certain fields (such as medicine and the military), sensitive images must be completely decrypted back into the original images. However, an encrypted image is a noise-like pattern that is meaningless to a user; thus, it is difficult for a user to find the accurate image they desire. Take keywords as search indexes and embed them in encrypted images for encrypted image retrieval as an example. This idea has been extended by Chen and Line’s scheme to achieve higher capacity with reversibility. The proposed scheme adjusts the coding results according to smooth and complex images to increase its hiding capacity. In addition, two thresholds are designed to adjust the predicted pixel value to be close to the original one. Experiments show that compared with the other schemes, the proposed method achieves superior results. In addition, a hidden encrypted image can be extracted from the cover image. Afterward, the hidden secrets can be completely extracted, and sensitive images can also be perfectly restored.
關鍵字 reversible data embedding;privacy protection;privacy leakage;image encryption;hamming coding
語言 zh_TW
ISSN 2076-3417
期刊性質 國內
收錄於 SCI
國別 TWN
出版型式 ,電子版

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