文章主要阐述指纹图像自动无损提取的实现问题。
The article mainly elaborates the realization of automatic extraction of the fingerprint image without any damage.
本文主要研究了基于舒张期心音分析及特征提取的冠心病无损诊断技术。
This paper mainly concerns the diagnosis of CAD automatically based on the analysis and features extraction of diastolic murmurs.
提出一种无损信息隐藏方法，接收端不但可以提取额外嵌入的秘密信息，而且可以无损恢复原始图像。
A novel lossless data-hiding scheme is presented by which the original image can be restored without error after extraction of an embedded message.
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