Number | Date | Country | Kind |
---|---|---|---|
4-158352 | Jun 1992 | JPX | |
4-161445 | Jun 1992 | JPX |
Number | Name | Date | Kind |
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4488245 | Dalke et al. | Dec 1984 | |
4689669 | Hoshino et al. | Aug 1987 | |
4907075 | Braudaway | Mar 1990 | |
4965745 | Economy et al. | Oct 1990 | |
4991122 | Sanders | Feb 1991 | |
5047842 | Bouman, Jr. et al. | Sep 1991 | |
5119186 | Deacon et al. | Jun 1992 | |
5278678 | Harrington | Jan 1994 |
Entry |
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Nobuyuki Otsu, "A Threshold Selection Method from Gray-Level Histograms", IEEE Transactions on Systems, Man and Cybernetics, vol. SMC-9, No. 1 Jan. 1979. |