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Submitted on: 28 April 1999.
Revised on: 05 August 1999.
Accepted on: 20 August 1999.
___________________IET Image Processing---WILEY
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http://reply.papertrans.cn/2/122/12168/12168-15.png
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Submitted on: 22 August 2010.
Revised on: 25 September 2010.
Accepted on: 12 November 2010.
___________________IET Image Processing---WILEY
Submitted on: 01 July 2001.
Revised on: 15 August 2001.
Accepted on: 04 September 2001.
___________________IET Image Processing---WILEY
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Submitted on: 11 October 1998.
Revised on: 27 January 1999.
Accepted on: 07 March 1999.
___________________IET Image Processing---WILEY