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ICIP
2002
IEEE
16 years 6 months ago
Further results on DCT-based linear phase paraunitary filter banks
A DCT-based simplified general structure for linear phase paraunitary filter bank (LPPUFB) is developed recently by the pre- and post-processing of the DCT in the time domain. The...
Jie Liang, Trac D. Tran
ICIP
2002
IEEE
16 years 6 months ago
On the security of an image encryption method
The security of digital images attracts much attention recently, and many different image encryption methods have been proposed. In 1999, J.-C. Yen and J.-I. Guo proposed a novel ...
Shujun Li, Xuan Zheng