Image processing method and apparatus

Details Image processing method and apparatus Image processing method and apparatus

2008-05-27

2008-05-27

Bella, Matthew C. (Department: 2624)

Image analysis

Image transformation or preprocessing

Changing the image coordinates

C382S266000, C345S596000

Reexamination Certificate

active

10986915

ABSTRACT:
An image processing method includes the steps of performing resolution conversion processing on input image data to increase the number of grayscale levels, performing edge enhancement processing to increase the number of grayscale levels of the input image data, and performing dithering processing to reduce the number of grayscale levels of each pixel of the input image data. The number of pseudo grayscale levels is determined, based on a combination of a parameter concerning the resolution conversion processing and a parameter indicating the level of the edge enhancement processing.

REFERENCES:
patent: 6608941 (2003-08-01), Suzuki et al.
patent: 6633406 (2003-10-01), Imaizumi et al.
patent: 2002/0196470 (2002-12-01), Kawamoto et al.
patent: 2000-134471 (2000-05-01), None
patent: 2003-69830 (2003-03-01), None

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