Presents a new technology for scrambling and restoring digital image Based on the hierarchical transformation under the control of secret key.
提出了一种新的密钥控制下的分层变换的数字图像置乱算法。
The hidden fingerprint data are extracted accurately from the carrier image by a secret key.
通过密钥，隐藏的指纹数据可以从被传输的图像中精确提取出来。
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