Method and apparatus for performing image enhancement

Details Method and apparatus for performing image enhancement Method and apparatus for performing image enhancement

1997-08-18

1999-09-07

Lee, Thomas D.

Image analysis

Image enhancement or restoration

Intensity, brightness, contrast, or shading correction

358520, 358518, H04N 140

Patent

active

059499184

ABSTRACT:
A method and apparatus for processing an image stream to enhance a parameter of the image. The image stream comprises a plurality of picture elements (pixels), each of which include a characteristic related to the image parameter to be enhanced. The pixels are processed according to a controllable function to produce a processed image stream. A statistical distribution of the pixel characteristic of interest is determined, optimized and used to generate control information to modify the operation of the controllable function.

REFERENCES:
patent: 4731671 (1988-03-01), Alkofer
patent: 4755954 (1988-07-01), Netter
patent: 5042077 (1991-08-01), Burke
patent: 5296941 (1994-03-01), Izawa et al.
patent: 5481620 (1996-01-01), Vaidyanathan
patent: 5544258 (1996-08-01), Levien
patent: 5680230 (1997-10-01), Kaburagi et al.

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