发明名称 |
Secure encryption and hiding of data and messages in images |
摘要 |
A method of encryption features the steps of first encrypting a message and then hiding (embedding) it within a digital image carrier. This is accomplished by only slightly changing the gray levels of the image carrier. The changes are imperceptible to the human eye, because they appear as random thermal noise that is commonly present in digitized images.
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申请公布号 |
US6094483(A) |
申请公布日期 |
2000.07.25 |
申请号 |
US19970907157 |
申请日期 |
1997.08.06 |
申请人 |
RESEARCH FOUNDATION OF STATE UNIVERSITY OF NEW YORK |
发明人 |
FRIDRICH, JIRI;SIMARD, RICHARD J. |
分类号 |
G06T1/00;H04N1/32;H04N7/26;(IPC1-7):H04N7/167 |
主分类号 |
G06T1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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