| Presentation | 2007-09-27 Cryptanalysis JPEG 2000 partial scrambled images based on statistical character Shingo HAMAGUCHI, Akihiro SHIMIZU, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Users can recognize image outline and protect copyrights on digital images by partial-scrambling. JPEG 2000 is suggested as an image encoding method. JPEG 2000 reduces occurrences of block noise and advances compression rate than JPEG. As a precedent research, it was proposed that we encode images and encrypt coded data. However the existing partial-scrambling is in danger of being restored scrambled images by a feature of image frequency transform. In this research, we point problems of existing partial-scrambling and approach a cryptanalysis. Additionally we determine images noise. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | JPEG 2000 / Partial-Scrambling / Encryption / Image compression |
| Paper # | CQ2007-46,OIS2007-36,IE2007-43 |
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| Conference Information | |
| Committee | CQ |
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| Conference Date | 2007/9/20(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Vice Chair | |
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| Paper Information | |
| Registration To | Communication Quality (CQ) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Cryptanalysis JPEG 2000 partial scrambled images based on statistical character |
| Sub Title (in English) | |
| Keyword(1) | JPEG 2000 |
| Keyword(2) | Partial-Scrambling |
| Keyword(3) | Encryption |
| Keyword(4) | Image compression |
| 1st Author's Name | Shingo HAMAGUCHI |
| 1st Author's Affiliation | Information Systems Engineering Course, Kochi University of Technology() |
| 2nd Author's Name | Akihiro SHIMIZU |
| 2nd Author's Affiliation | Information Systems Engineering Course, Kochi University of Technology |
| Date | 2007-09-27 |
| Paper # | CQ2007-46,OIS2007-36,IE2007-43 |
| Volume (vol) | vol.107 |
| Number (no) | 229 |
| Page | pp.pp.- |
| #Pages | 4 |
| Date of Issue | |