Image encryption
Images for security applications have to be encoded to ensure that the information cannot be seen by unintended persons. It is important for security applications to be able to encode the information in a way that is difficult to decode without the key, but easy if one has the key. There have been s...
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| 主要作者: | |
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| 格式: | Final Year Project |
| 語言: | English |
| 出版: |
2015
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| 主題: | |
| 在線閱讀: | http://hdl.handle.net/10356/63621 |
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| 機構: | Nanyang Technological University |
| 語言: | English |
| 總結: | Images for security applications have to be encoded to ensure that the information cannot be seen by unintended persons. It is important for security applications to be able to encode the information in a way that is difficult to decode without the key, but easy if one has the key. There have been several image encryption methods through 2D transforms been proposed. I will be mainly looking at how the Fourier based optical encryption works, and how are random white sequences used to encrypt images. |
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