Image density test chart and method for determining image...

Details Image density test chart and method for determining image... Image density test chart and method for determining image...

2003-11-12

2009-10-27

Mehta, Bhavesh M (Department: 2624)

Image analysis

Image enhancement or restoration

Intensity, brightness, contrast, or shading correction

C382S162000, C358S521000, C358S001900

Reexamination Certificate

active

07609909

ABSTRACT:
An image density discrimination chart is used to discriminate a density of a test image printed by an image forming apparatus. The chart includes an exposing portion for exposing the test image when the chart is overlaid relative to a printed recording material, a first comparison image having an upper limit level of a latitude, permitted by the image forming apparatus, for image density of the test image, and a second comparison image having a lower limit level of a latitude, permitted by the image forming apparatus, for image density of the test image.

REFERENCES:
patent: 4166701 (1979-09-01), Miller
patent: 4687334 (1987-08-01), Miyakawa
patent: 5598272 (1997-01-01), Fisch et al.
patent: 5917511 (1999-06-01), Ueda
patent: 5953990 (1999-09-01), Chalmers et al.
patent: 6091512 (2000-07-01), Sasanuma et al.
patent: 6139325 (2000-10-01), Tracy et al.
patent: 6628426 (2003-09-01), Denton et al.
patent: 6672701 (2004-01-01), Nunokawa
patent: 6715417 (2004-04-01), Okuda
patent: 2002/0030832 (2002-03-01), Shibuya et al.
patent: 2004/0095591 (2004-05-01), Takahashi
patent: 2005/0190386 (2005-09-01), Zaima
patent: 60-220659 (1985-11-01), None
patent: 1-138458 (1989-05-01), None
patent: 3-69272 (1991-03-01), None
patent: 2000-122367 (2000-04-01), None
patent: 2000-346707 (2000-12-01), None
patent: 2004072620 (2004-03-01), None

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