Correlation calculation decrypting for BSS-based image cryptosystem
For a blind source separation （BSS） based method for encrypting multiple images, the multiple decrypted im- ages by BSS may have changed order and reversed pixel values. In addition, decorrelation preprocessing must be per- formed prior to decryption of strongly correlated images. To solve the two p...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2008-01-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/74657022/ |
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| _version_ | 1841537477086543872 |
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| author | LIN Qiu-hua DANG Jie YIN Fu-liang |
| author_facet | LIN Qiu-hua DANG Jie YIN Fu-liang |
| author_sort | LIN Qiu-hua |
| collection | DOAJ |
| description | For a blind source separation （BSS） based method for encrypting multiple images, the multiple decrypted im- ages by BSS may have changed order and reversed pixel values. In addition, decorrelation preprocessing must be per- formed prior to decryption of strongly correlated images. To solve the two problems, a novel method for image decryp- tion was proposed based on correlation calculation since the key images are known for legal users and are independent of the original images. Specifically, the correlation matrix between the encrypted images and the key images was calculated according to the encryption equation, the decrypted images are then obtained by ignoring the smaller correlation matrix between the original images and the key images. The results of computer simulations and performance analyses demon- strate that the proposed method can provide much higher quality and much faster speed compared to the BSS decryption, and also can directly decrypt varied images. |
| format | Article |
| id | doaj-art-a24b2018d5874ccd9cbcb4a1e0c9f2a5 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2008-01-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-a24b2018d5874ccd9cbcb4a1e0c9f2a52025-01-14T08:34:07ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2008-01-0110911474657022Correlation calculation decrypting for BSS-based image cryptosystemLIN Qiu-huaDANG JieYIN Fu-liangFor a blind source separation （BSS） based method for encrypting multiple images, the multiple decrypted im- ages by BSS may have changed order and reversed pixel values. In addition, decorrelation preprocessing must be per- formed prior to decryption of strongly correlated images. To solve the two problems, a novel method for image decryp- tion was proposed based on correlation calculation since the key images are known for legal users and are independent of the original images. Specifically, the correlation matrix between the encrypted images and the key images was calculated according to the encryption equation, the decrypted images are then obtained by ignoring the smaller correlation matrix between the original images and the key images. The results of computer simulations and performance analyses demon- strate that the proposed method can provide much higher quality and much faster speed compared to the BSS decryption, and also can directly decrypt varied images.http://www.joconline.com.cn/zh/article/74657022/blind source separationimage encryptionimage decryptioncorrelation calculation |
| spellingShingle | LIN Qiu-hua DANG Jie YIN Fu-liang Correlation calculation decrypting for BSS-based image cryptosystem Tongxin xuebao blind source separation image encryption image decryption correlation calculation |
| title | Correlation calculation decrypting for BSS-based image cryptosystem |
| title_full | Correlation calculation decrypting for BSS-based image cryptosystem |
| title_fullStr | Correlation calculation decrypting for BSS-based image cryptosystem |
| title_full_unstemmed | Correlation calculation decrypting for BSS-based image cryptosystem |
| title_short | Correlation calculation decrypting for BSS-based image cryptosystem |
| title_sort | correlation calculation decrypting for bss based image cryptosystem |
| topic | blind source separation image encryption image decryption correlation calculation |
| url | http://www.joconline.com.cn/zh/article/74657022/ |
| work_keys_str_mv | AT linqiuhua correlationcalculationdecryptingforbssbasedimagecryptosystem AT dangjie correlationcalculationdecryptingforbssbasedimagecryptosystem AT yinfuliang correlationcalculationdecryptingforbssbasedimagecryptosystem |