Method of adjusting the brightness of an image, digital...

Details Method of adjusting the brightness of an image, digital... Method of adjusting the brightness of an image, digital...

2007-02-13

2007-02-13

Srivastava, Vivek (Department: 2622)

Television

Camera, system and detail

Combined image signal generator and general image signal...

C348S364000

Reexamination Certificate

active

09134478

ABSTRACT:
The brightness of image data is previously defined based on the R, G, and B values of each pixel. In an image considered to have been exposed appropriately by a conventional method, when the brightness histogram for the defined image is computed, pixels having the maximum value in the definition of brightness always occupy a predetermined rate (1% or so) of all pixels. Based on this rule of thumb, the gain of an image acquisition device or the pixel value of acquired data is adjusted so that a brightness histogram (3) for image data which is an object of adjustment becomes a histogram (4) having the same characteristic as the above-mentioned appropriately exposed image.

REFERENCES:
patent: 4450482 (1984-05-01), Ackermann
patent: 4943850 (1990-07-01), Asaida
patent: 5335075 (1994-08-01), Komiya et al.
patent: 5504524 (1996-04-01), Lu et al.
patent: 5861926 (1999-01-01), Kwon
patent: 6018588 (2000-01-01), Kim
patent: 6061091 (2000-05-01), Van de Poel et al.
patent: 6080104 (2000-06-01), Ozawa et al.
patent: 6111980 (2000-08-01), Sano et al.
patent: 6157744 (2000-12-01), Nagasaka et al.
patent: 6256419 (2001-07-01), Nagasaka et al.
patent: 6583820 (2003-06-01), Hung

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