Image processing apparatus, image processing method, and...

Details Image processing apparatus, image processing method, and... Image processing apparatus, image processing method, and...

2006-05-23

2006-05-23

Lee, Thomas D. (Department: 2624)

Image analysis

Image enhancement or restoration

Intensity, brightness, contrast, or shading correction

C382S261000

Reexamination Certificate

active

07050648

ABSTRACT:
An image processing method comprises an extracting process of extracting a characteristic amount of an input image, a generating process of generating a high frequency component of the input image, a gradation converting process of converting a gradation of the input image on the basis of the characteristic amount, and an adding process of adding the high frequency component to the input image whose gradation has been converted.

REFERENCES:
patent: 5745173 (1998-04-01), Edwards et al.
patent: 5796870 (1998-08-01), Takeo
patent: 5905817 (1999-05-01), Matama
patent: 6101273 (2000-08-01), Matama
patent: 6470101 (2002-10-01), Nakamura

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