Image analysis – Image enhancement or restoration – Image filter
Patent
1997-08-19
2000-03-07
Couso, Yon J.
Image analysis
Image enhancement or restoration
Image filter
382266, G06K 940
Patent
active
060350717
ABSTRACT:
Unsharp mask image signals are formed from an original image signal, and band-limited image signals are formed from the original image signal and the unsharp mask image signals. Each of the band-limited image signals is converted in accordance with one of converting functions, and converted image signals are thereby formed. An integration signal obtained by integrating the converted image signals is added to the original image signal, and a processed image signal, in which predetermined frequency components of the original image signal have been emphasized, is thereby obtained. The converting functions are defined by specifying desired frequency response characteristics of the processed image signal, and determining definition parameters for the converting functions in accordance with the specified frequency response characteristics. Even users having little experience can thus easily adjust the definition parameters and can obtain the processed image signal having the desired frequency response characteristics.
REFERENCES:
patent: 4315318 (1982-02-01), Kato et al.
patent: 4317179 (1982-02-01), Kato et al.
patent: 4819188 (1989-04-01), Matsubara et al.
patent: 4903205 (1990-02-01), Hishinuma
patent: 5051902 (1991-09-01), Hishinuma
patent: 5485534 (1996-01-01), Takemoto et al.
patent: 5748799 (1998-05-01), Shimura
Couso Yon J.
Fuji Photo Film Co. , Ltd.
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