Method of determining display characteristic function

Details Method of determining display characteristic function Method of determining display characteristic function

1997-05-14

1999-07-20

Rogers, Scott

Television

Special applications

Simulator

395109, 348650, 348652, 348655, 348656, 358501, 358504, 358518, 358529, 345 63, 345 89, 345146, 345147, H04N 1700

Patent

active

059266171

ABSTRACT:
A test image 40 for determining a gamma value has a plurality of first gradation patterns 20 and a plurality of second gradation patterns 30. The patterns 20 and 30 are arranged alternately in a vertical direction. In each pattern 20, a relative brightness linearly increases from left to right. In each pattern 30, a relative brightness linearly decreases from left to right.

REFERENCES:
patent: 4959711 (1990-09-01), Hung et al.
patent: 5289993 (1994-03-01), Edgar et al.
patent: 5298993 (1994-03-01), Edgar et al.
patent: 5381349 (1995-01-01), Winter et al.

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