Image steganography based on nonsubsampled Contourlet transform and Hill cipher
A novel image steganography was proposed，which was based on nonsubsampled Contourlet transform （NSCT）and Hill cipher.Firstly，cover image was decomposed with NSCT.It provided a multi-scale and multi-directional representation of an image.One of subbands was selected to embed secret data.Then Hill cip...
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| Format: | Article |
| Language: | zho |
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Beijing Xintong Media Co., Ltd
2016-06-01
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| Series: | Dianxin kexue |
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| Online Access: | http://www.telecomsci.com/thesisDetails#10.11959/j.issn.1000-0801.2016170 |