Facsimile and static presentation processing – Natural color facsimile – Color separation
Patent
1996-08-09
1999-02-02
Vu, Kim Yen
Facsimile and static presentation processing
Natural color facsimile
Color separation
358518, 3589091, 348 45, 348 65, 348223, 382128, 382167, H04N 146, H04N 5225, G03F 308
Patent
active
058672842
ABSTRACT:
The invention relates to a device for correcting the tone of color pictures recorded by a video camera, in particular an endoscope camera. A control device works in combination with a preferably triangular keyboard so that a free tone correction of the three ground colors of the video picture may be effected independently of the color temperature of the recorded object, i.e. in particular, independently of the light source employed. The switching surface is in the form of a surface PAD keyboard which allows the evaluation of the location of a finger tip or likewise at any position on the triangle, and thus represents a very effective input medium for the tone correction according to the invention. A similarly provided automatic white balancing function permits the white point of the camera color space to lie in the surface center of the surface PAD keyboard.
REFERENCES:
patent: 4774564 (1988-09-01), Konishi
patent: 4951134 (1990-08-01), Nakasima et al.
patent: 5016094 (1991-05-01), Kaneko
patent: 5111281 (1992-05-01), Sekiguchi
Hafele Ulrich
Heinrichs Jean-Pierre
Vogele Michael
Richard Wolf GmbH
Vu Kim Yen
Williams Kimberly A.
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